三位数乘两位数的口算
三位数乘两位数口算
第二组
120×8= 960
第二组
430×2= 860
第二组
14×6= 64
胜
利
失
败
第三组
17×5= 85
第三组
180×4= 720
第三组
35×2= 70
第三组
310×3= 930
第三组
19×5= 95
第三组
270×2= 540
胜
利
下一关
失
败
第二关 抓住喜羊羊!
起点
68 4×17= 12×8= 96 300×3= 900 70×9= 630 82 720 480
口 算 10 × 3 = 30 6 × 3 = 18 30 + 18 = 48
列 竖 式
× 3
48
答：人骑自行车3小时可以行48千米。
算一算，你发现了什么？
16x3= 48 160x3= 480
16x30= 480
思考：几百几十与一位数相乘的口算方法？
1
5×3= 15
50×3= 150 50×30= 1500
三位数乘两位数
口算乘法
热身赛
11x40 = 440 70x70= 490 100x3= 300
21Hale Waihona Puke 2= 42200x4= 800
12x3= 36
300x3=300
33X2= 66
41x20= 840
例.1
（1）人骑自行车3小时可以
行多少千米？
16 × 3 = 48 (千米) 人骑自行车1小时
约行16千米。 16
54
95
85
700
算一算，你发现了什么？ 小组讨论
三位数乘两位数口算技巧
三位数乘两位数的口算方法
三位数乘两位数例子演示387×51：
解题思路:先将两乘数末位对齐,然后分别使用第二个乘数,由末位起对每一位数依次乘上一个乘数,最
后将所计算结果累加即为乘积,如果乘数为小数可先将其扩大相应的倍数,最后乘积在缩小相应的倍数。
解题过程:
步骤一:1×387=387
步骤二:5×387=19350
根据以上计算结果相加为19737
验算:19737÷51=387
乘法的计算法则：
数位对齐，从右边起，依次用第二个因数每位上的数去乘第一个因数，乘到哪一位，得数的末尾就和第二个因数的哪一位对齐。
1、十位数是1的两位数相乘方法：乘数的个位与被乘数相加，得数为前积，乘数的个位与被乘数的个位相乘，得数为后积，满十前一。
2、个位是1的两位数相乘方法：十位与十位相乘，得数为前积，十位与十位相加，得数接着写，满十进一，在最后添上1。
3、十位相同个位不同的两位数相乘方法：被乘数加上乘数个位，和与十位数整数相乘，积作为前积，个位数与个位数相乘作为后积加上。
小学三位数乘两位数的乘法口算技巧
小学三位数乘两位数的乘法口算技巧在小学教育中，乘法口算是一个重要的学习内容。
而三位数乘两位数的乘法口算对于学生来说常常是一个难点。
本文将介绍一些小学三位数乘两位数的乘法口算技巧，帮助学生更好地掌握这一内容。
1. 把乘法分解成简单的相乘步骤：先计算个位数的乘积，再计算十位数的乘积，最后计算百位数的乘积。
将这些乘积相加得到最终的结果。
例如，计算345乘以27，首先计算5乘以7为35，然后计算4乘以7为28，最后计算3乘以7为21。
将这些结果相加得到最终的结果。
2. 利用乘法的交换律和结合律简化计算：将三位数和两位数的乘法转换成两位数和一位数的乘法。
例如，计算345乘以27，可以先计算27乘以5得到135，然后计算27乘以4得到108。
最后将这两个结果相加得到最终的结果。
3. 利用乘法的分配律简化计算：如果一个数可以被拆分成几个部分，那么可以先计算每个部分的乘积，再将这些乘积相加得到最终的结果。
例如，计算345乘以27，可以将345拆分成300和45，然后分别计算300乘以27和45乘以27，最后将这两个结果相加得到最终的结果。
4. 利用乘法的倍数关系简化计算：如果一个数是另一个数的倍数，那么乘以这个数的结果也是相应倍数的结果。
例如，计算300乘以27，由于300是27的倍数，所以乘积结果也是相应倍数的结果。
5. 利用乘法的特殊规律简化计算：对于特殊的乘法组合，可以利用一些特殊规律来简化计算。
例如，乘以10的整数倍的数，可以通过在原数后面添加相应数量的零来得到。
乘以11的整数倍的数，可以通过将原数的每个位上的数字相加得到。
通过运用上述的乘法口算技巧，学生在进行小学三位数乘两位数的乘法口算时可以更加得心应手。
在实际操作中，学生可以根据题目的不同选择最适合的技巧来进行计算。
同时，多加练习和反复巩固也是提高口算能力的关键。
在教学过程中，老师和家长可以通过提供一些练习题和口算题目来让学生进行练习。
同时，适当地使用计算器也可以帮助学生更好地理解乘法运算的规律和技巧。
三位数乘以两位数口算讲解
三位数乘以两位数的口算方法如下：
1 先将乘数的第一位数与被乘数的每一位数相乘，得到的积依次写
在被乘数的每一位右侧。
如果有进位，则将进位写在下一位的左侧。
2 再将乘数的第二位数与被乘数的每一位数相乘，得到的积依次写
在被乘数的每一位的左侧。
如果有进位，则将进位写在下一位的左侧。
3 最后将两步得到的乘积相加，得到最终的结果。
举个例子，对于三位数456和两位数78的乘积，可以这样计算：
1 先将乘数的第一位数8与被乘数的每一位数相乘，得到的积依次
写在被乘数的每一位右侧。
456*8=3648，写成这样：
4|6|4|8
2 再将乘数的第二位数7与被乘数的每一位数相乘，得到的积依次
写在被乘数的每一位的左侧。
456*7=3192，写成这样：
3|1|9|2
3 最后将两步得到的乘积相加，得到最终的结果。
4|6|4|8
3|1|9|2
3|8|4|0
因此，456*78=3840。
需要注意的是，在口算过程中要注意计算的顺序，并且要细心核对计算结果，避免出现错误。
四年级上册三位数乘以两位数口算题
四年级上册三位数乘以两位数口算题一、口算题。
1. 120×30 =- 解析：先计算12×3 = 36，然后因为因数末尾共有2个0，就在36后面添上2个0，所以结果是3600。
2. 150×20 =- 解析：计算15×2 = 30，因数末尾共有2个0，在30后面添2个0，结果为3000。
3. 230×40 =- 解析：先算23×4 = 92，因数末尾有2个0，得到结果9200。
4. 320×30 =- 解析：32×3 = 96，因数末尾共2个0，答案是9600。
5. 140×50 =- 解析：14×5 = 70，因数末尾2个0，结果为7000。
6. 450×20 =- 解析：45×2 = 90，因数末尾2个0，是9000。
7. 310×30 =- 解析：31×3 = 93，因数末尾2个0，结果9300。
8. 240×50 =- 解析：24×5 = 120，因数末尾2个0，得到12000。
- 解析：17×4 = 68，因数末尾2个0，答案是6800。
10. 520×20 =- 解析：52×2 = 104，因数末尾2个0，结果10400。
11. 130×60 =- 解析：13×6 = 78，因数末尾2个0，是7800。
12. 410×30 =- 解析：41×3 = 123，因数末尾2个0，结果12300。
13. 330×40 =- 解析：33×4 = 132，因数末尾2个0，得到13200。
14. 260×50 =- 解析：26×5 = 130，因数末尾2个0，答案是13000。
15. 180×30 =- 解析：18×3 = 54，因数末尾2个0，结果5400。
四年级上册口算题(三位数乘两位数) 3000题
530 × 15 =103 × 60 =800 × 10 =100 × 35 =280 × 30 =990 × 10 =898 × 10 =125 × 70 =510 × 10 =154 × 50 =252 × 28 =400 × 20 =180 × 10 =111 × 10 =123 × 50 =162 × 40 =120 × 44 =40 × 80 =360 × 20 =552 × 10 =472 × 20 =140 × 31 =272 × 10 =660 × 14 =912 × 10 =150 × 10 =300 × 10 =658 × 10 =239 × 37 =505 × 18 =423 × 16 =262 × 10 =235 × 40 =490 × 10 =550 × 16 =200 × 22 =136 × 45 =80 × 20 =432 × 10 =243 × 16 =310 × 20 =379 × 20 =127 × 25 =190 × 40 =355 × 19 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:540 × 10 =160 × 30 =408 × 10 = 100 × 80 =953 × 10 =210 × 44 = 500 × 10 =102 × 40 =165 × 32 = 688 × 11 =911 × 10 =576 × 10 = 304 × 25 =160 × 50 =114 × 73 = 515 × 10 =470 × 10 =578 × 10 = 541 × 10 =170 × 28 =954 × 10 = 728 × 10 =335 × 10 =650 × 10 = 184 × 26 =630 × 15 =315 × 30 = 200 × 50 =331 × 10 =199 × 26 = 420 × 15 =100 × 20 =129 × 50 = 218 × 10 =335 × 12 =410 × 20 = 280 × 12 =600 × 10 =120 × 53 = 215 × 23 =200 × 20 =140 × 13 = 270 × 30 =580 × 10 =500 × 20 = 100 × 70 =930 × 10 =175 × 46 = 160 × 60 =330 × 24 =150 × 56 = 900 × 10 =565 × 10 =100 × 90 = 265 × 10 =720 × 10 =246 × 36 =390 × 13 =223 × 40 =199 × 26 =103 × 90 =156 × 60 =235 × 40 =290 × 14 =280 × 30 =160 × 23 =80 × 20 =424 × 15 =290 × 17 =140 × 24 =820 × 10 =250 × 20 =310 × 28 =335 × 12 =162 × 40 =336 × 10 =312 × 31 =148 × 20 =175 × 46 =10 × 50 =129 × 54 =595 × 12 =184 × 26 =359 × 25 =198 × 13 =990 × 10 =331 × 10 =953 × 10 =410 × 17 =400 × 10 =285 × 20 =100 × 84 =140 × 60 =400 × 20 =150 × 40 =155 × 60 =262 × 10 =160 × 60 =134 × 40 =140 × 31 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:631 × 10 =195 × 36 =236 × 40 = 258 × 33 =200 × 30 =392 × 25 = 913 × 10 =240 × 30 =152 × 42 = 600 × 10 =464 × 20 =106 × 10 = 120 × 44 =370 × 18 =550 × 10 = 688 × 11 =470 × 12 =440 × 10 = 435 × 20 =363 × 20 =162 × 60 = 630 × 10 =230 × 37 =200 × 24 = 142 × 30 =100 × 80 =431 × 10 = 341 × 25 =675 × 10 =265 × 30 = 390 × 10 =380 × 10 =180 × 11 = 120 × 75 =132 × 20 =190 × 40 = 246 × 30 =634 × 10 =385 × 14 = 114 × 73 =430 × 20 =300 × 10 = 295 × 10 =165 × 20 =270 × 23 = 129 × 50 =700 × 10 =224 × 28 = 149 × 33 =250 × 40 =180 × 30 = 218 × 10 =475 × 17 =225 × 10 = 158 × 60 =590 × 10 =137 × 60 =210 × 44 =410 × 20 =688 × 11 =400 × 14 =470 × 12 =224 × 28 =199 × 26 =550 × 10 =556 × 15 =120 × 56 =934 × 10 =335 × 12 =334 × 20 =400 × 10 =180 × 20 =190 × 40 =149 × 10 =330 × 10 =141 × 68 =869 × 10 =240 × 20 =552 × 10 =304 × 25 =516 × 15 =630 × 15 =953 × 10 =149 × 55 =200 × 20 =100 × 90 =192 × 50 =300 × 10 =359 × 25 =80 × 20 =898 × 10 =560 × 10 =290 × 14 =175 × 46 =431 × 10 =390 × 10 =119 × 60 =158 × 60 =110 × 70 =149 × 50 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:655 × 12 =460 × 15 =262 × 10 = 108 × 20 =90 × 20 =300 × 20 = 530 × 10 =630 × 10 =161 × 29 = 520 × 12 =755 × 10 =125 × 70 = 310 × 25 =600 × 10 =149 × 33 = 262 × 34 =230 × 40 =100 × 80 = 100 × 35 =212 × 10 =958 × 10 = 633 × 12 =181 × 20 =160 × 10 = 258 × 20 =280 × 30 =246 × 30 = 490 × 10 =184 × 26 =190 × 38 = 132 × 20 =270 × 23 =310 × 28 = 388 × 10 =103 × 90 =200 × 10 = 100 × 60 =134 × 60 =565 × 10 = 162 × 40 =235 × 40 =577 × 11 = 140 × 31 =214 × 20 =198 × 13 = 121 × 63 =160 × 60 =990 × 10 = 100 × 84 =250 × 40 =130 × 21 = 230 × 30 =660 × 14 =120 × 83 = 165 × 32 =820 × 10 =368 × 24 =135 × 30 =750 × 13 =470 × 12 =165 × 32 =158 × 60 =755 × 10 =280 × 30 =901 × 10 =800 × 10 =680 × 10 =150 × 40 =140 × 60 =300 × 20 =930 × 10 =630 × 15 =530 × 11 =500 × 15 =700 × 10 =300 × 30 =304 × 25 =965 × 10 =100 × 70 =108 × 25 =132 × 10 =240 × 11 =300 × 10 =100 × 35 =246 × 36 =160 × 23 =134 × 10 =500 × 20 =260 × 30 =236 × 20 =250 × 40 =130 × 23 =410 × 17 =180 × 10 =280 × 12 =100 × 84 =600 × 10 =900 × 10 =370 × 16 =120 × 53 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:257 × 27 =178 × 25 =390 × 13 = 295 × 22 =270 × 35 =370 × 20 = 550 × 16 =100 × 50 =740 × 10 = 110 × 70 =145 × 10 =355 × 19 = 180 × 30 =257 × 10 =700 × 11 = 328 × 22 =230 × 24 =114 × 73 = 200 × 40 =950 × 10 =224 × 28 = 125 × 70 =400 × 20 =130 × 21 = 140 × 31 =149 × 33 =331 × 10 = 210 × 44 =90 × 60 =170 × 20 = 123 × 50 =370 × 14 =120 × 74 = 380 × 26 =180 × 20 =898 × 10 = 200 × 10 =184 × 26 =103 × 90 = 217 × 10 =688 × 11 =290 × 14 = 892 × 10 =165 × 20 =262 × 10 = 120 × 22 =90 × 80 =660 × 14 = 195 × 36 =400 × 14 =129 × 50 = 180 × 11 =270 × 23 =199 × 26 = 305 × 26 =103 × 90 =110 × 52 =410 × 17 =624 × 10 =540 × 10 =290 × 14 =100 × 90 =374 × 21 =180 × 40 =195 × 15 =20 × 30 =930 × 10 =160 × 14 =335 × 20 =217 × 10 =326 × 20 =280 × 12 =100 × 70 =400 × 20 =755 × 10 =310 × 28 =262 × 10 =331 × 10 =410 × 20 =224 × 28 =112 × 65 =110 × 68 =160 × 60 =243 × 16 =917 × 10 =898 × 10 =246 × 36 =350 × 10 =475 × 17 =195 × 36 =647 × 10 =162 × 40 =470 × 12 =688 × 11 =235 × 40 =130 × 53 =104 × 82 =240 × 16 =132 × 20 =408 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:160 × 23 =120 × 55 =700 × 10 = 198 × 34 =740 × 12 =160 × 30 = 900 × 10 =140 × 31 =104 × 40 = 390 × 10 =199 × 26 =355 × 19 = 230 × 34 =100 × 20 =410 × 12 = 90 × 40 =500 × 20 =270 × 31 = 190 × 10 =338 × 25 =600 × 10 = 390 × 13 =100 × 80 =197 × 40 = 928 × 10 =631 × 10 =310 × 22 = 469 × 16 =129 × 50 =252 × 30 = 130 × 70 =184 × 26 =130 × 21 = 630 × 15 =240 × 30 =115 × 50 = 550 × 10 =466 × 10 =380 × 10 = 630 × 10 =336 × 10 =198 × 13 = 260 × 20 =431 × 10 =343 × 23 = 180 × 10 =633 × 12 =182 × 45 = 300 × 20 =300 × 10 =652 × 15 = 149 × 33 =214 × 30 =492 × 18 = 472 × 20 =468 × 20 =200 × 40 =103 × 90 =660 × 14 =140 × 51 =125 × 70 =240 × 26 =493 × 12 =140 × 65 =624 × 15 =180 × 10 =100 × 84 =180 × 11 =184 × 26 =130 × 21 =431 × 10 =210 × 44 =50 × 10 =953 × 10 =20 × 10 =320 × 26 =199 × 26 =120 × 53 =630 × 10 =470 × 12 =755 × 10 =239 × 32 =270 × 23 =631 × 10 =782 × 10 =175 × 46 =688 × 11 =160 × 23 =120 × 44 =363 × 21 =500 × 20 =200 × 20 =134 × 40 =120 × 80 =280 × 12 =200 × 27 =110 × 70 =232 × 10 =180 × 20 =130 × 20 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:800 × 10 =140 × 60 =200 × 10 = 218 × 10 =120 × 83 =359 × 25 = 892 × 10 =335 × 12 =243 × 16 = 10 × 80 =330 × 24 =140 × 27 = 246 × 30 =331 × 10 =336 × 10 = 633 × 12 =490 × 16 =245 × 14 = 162 × 40 =540 × 10 =270 × 29 = 100 × 90 =100 × 20 =217 × 10 = 460 × 20 =418 × 17 =310 × 10 = 330 × 10 =150 × 40 =114 × 75 = 280 × 20 =280 × 30 =123 × 50 = 200 × 50 =165 × 32 =160 × 20 = 198 × 13 =235 × 40 =380 × 20 = 156 × 20 =200 × 30 =410 × 20 = 110 × 40 =150 × 10 =190 × 50 = 174 × 56 =900 × 10 =132 × 20 = 472 × 20 =820 × 10 =990 × 10 = 750 × 12 =460 × 10 =235 × 30 = 129 × 50 =120 × 83 =198 × 13 =837 × 11 =200 × 10 =409 × 20 =120 × 53 =892 × 10 =410 × 17 =100 × 60 =116 × 30 =552 × 10 =310 × 28 =180 × 16 =180 × 20 =125 × 70 =550 × 16 =565 × 10 =990 × 10 =120 × 20 =160 × 60 =408 × 10 =199 × 26 =200 × 20 =720 × 12 =243 × 16 =160 × 20 =336 × 10 =325 × 30 =165 × 20 =390 × 13 =184 × 26 =105 × 80 =316 × 25 =260 × 16 =246 × 36 =100 × 22 =280 × 34 =145 × 66 =224 × 28 =110 × 18 =620 × 13 =100 × 20 =130 × 21 =280 × 30 =122 × 45 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:110 × 70 =470 × 12 =129 × 50 = 320 × 14 =390 × 10 =140 × 50 = 216 × 34 =130 × 60 =160 × 30 = 195 × 32 =140 × 20 =270 × 23 = 898 × 10 =198 × 49 =70 × 40 = 140 × 10 =900 × 10 =170 × 55 = 130 × 69 =100 × 35 =700 × 10 = 630 × 10 =885 × 10 =50 × 80 = 400 × 20 =196 × 26 =334 × 23 = 210 × 10 =335 × 12 =510 × 19 = 332 × 25 =560 × 12 =755 × 10 = 331 × 10 =130 × 41 =410 × 20 = 260 × 15 =820 × 10 =390 × 16 = 314 × 10 =100 × 84 =500 × 17 = 633 × 12 =206 × 40 =217 × 10 = 160 × 46 =600 × 10 =598 × 13 = 120 × 64 =150 × 20 =160 × 23 = 688 × 11 =660 × 14 =720 × 10 = 149 × 33 =149 × 33 =445 × 18 =330 × 24 =675 × 10 =160 × 23 =196 × 45 =660 × 14 =345 × 16 =100 × 35 =953 × 10 =150 × 50 =40 × 40 =470 × 12 =331 × 10 =100 × 30 =140 × 31 =480 × 10 =175 × 46 =400 × 20 =612 × 15 =380 × 10 =350 × 13 =313 × 30 =180 × 11 =100 × 60 =500 × 17 =299 × 30 =160 × 15 =122 × 80 =990 × 10 =198 × 34 =204 × 33 =150 × 37 =246 × 36 =150 × 38 =304 × 25 =167 × 30 =150 × 40 =330 × 25 =266 × 15 =634 × 10 =631 × 10 =472 × 20 =239 × 37 =196 × 32 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:280 × 12 =431 × 10 =198 × 13 = 335 × 12 =230 × 38 =103 × 90 = 100 × 40 =130 × 21 =115 × 78 = 195 × 36 =100 × 52 =60 × 20 = 165 × 20 =426 × 10 =217 × 10 = 839 × 10 =600 × 10 =230 × 43 = 250 × 40 =200 × 10 =120 × 34 = 200 × 20 =100 × 84 =262 × 10 = 116 × 20 =159 × 30 =290 × 20 = 123 × 50 =117 × 49 =130 × 10 = 70 × 20 =220 × 33 =630 × 15 = 536 × 10 =310 × 28 =185 × 10 = 120 × 83 =633 × 12 =280 × 30 = 770 × 10 =90 × 10 =136 × 65 = 143 × 40 =300 × 30 =410 × 17 = 145 × 55 =506 × 10 =210 × 26 = 80 × 50 =270 × 23 =110 × 39 = 380 × 18 =195 × 28 =235 × 40 = 430 × 15 =330 × 24 =863 × 10 =165 × 20 =552 × 10 =210 × 30 =160 × 60 =80 × 20 =160 × 58 =228 × 15 =475 × 17 =130 × 72 =100 × 50 =195 × 36 =170 × 30 =990 × 10 =336 × 10 =199 × 26 =930 × 10 =115 × 30 =410 × 17 =500 × 10 =633 × 12 =198 × 13 =214 × 30 =217 × 10 =180 × 11 =631 × 10 =400 × 20 =170 × 44 =162 × 40 =210 × 44 =175 × 46 =580 × 14 =129 × 50 =200 × 16 =630 × 10 =250 × 35 =318 × 30 =224 × 28 =235 × 40 =153 × 30 =820 × 10 =100 × 90 =100 × 40 =130 × 21 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:198 × 34 =160 × 23 =180 × 10 = 700 × 10 =246 × 36 =110 × 65 = 220 × 43 =630 × 15 =152 × 30 = 500 × 20 =335 × 12 =120 × 83 = 270 × 15 =487 × 20 =390 × 13 = 100 × 20 =898 × 10 =100 × 84 = 344 × 10 =182 × 45 =244 × 10 = 120 × 44 =225 × 14 =717 × 10 = 250 × 20 =800 × 10 =550 × 16 = 123 × 50 =410 × 20 =140 × 60 = 270 × 23 =250 × 40 =270 × 20 = 280 × 20 =472 × 20 =158 × 17 = 145 × 46 =550 × 10 =170 × 10 = 892 × 10 =264 × 35 =932 × 10 = 688 × 11 =796 × 10 =400 × 14 = 200 × 10 =307 × 24 =280 × 12 = 320 × 20 =154 × 49 =138 × 12 = 150 × 43 =200 × 30 =431 × 10 = 132 × 20 =550 × 10 =190 × 50 =688 × 11 =50 × 40 =410 × 11 =800 × 10 =110 × 28 =500 × 10 =110 × 10 =345 × 22 =239 × 11 =180 × 36 =125 × 70 =400 × 10 =930 × 10 =410 × 20 =246 × 30 =224 × 28 =383 × 25 =900 × 10 =470 × 12 =40 × 60 =199 × 26 =200 × 20 =120 × 44 =408 × 10 =170 × 26 =158 × 60 =135 × 56 =240 × 30 =100 × 40 =168 × 45 =180 × 10 =400 × 14 =162 × 40 =560 × 15 =898 × 10 =953 × 10 =500 × 20 =540 × 10 =312 × 25 =239 × 37 =114 × 10 =100 × 10 =175 × 46 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:136 × 70 =335 × 12 =165 × 32 = 244 × 40 =130 × 40 =100 × 20 = 582 × 15 =700 × 10 =149 × 33 = 246 × 36 =120 × 83 =471 × 16 = 30 × 30 =243 × 16 =240 × 26 = 130 × 21 =100 × 84 =600 × 10 = 100 × 35 =336 × 10 =520 × 10 = 625 × 11 =200 × 50 =670 × 10 = 331 × 10 =482 × 15 =169 × 11 = 250 × 40 =123 × 50 =298 × 10 = 552 × 10 =235 × 10 =200 × 30 = 431 × 10 =110 × 70 =272 × 30 = 380 × 10 =410 × 18 =300 × 10 = 280 × 12 =685 × 14 =550 × 16 = 263 × 33 =146 × 20 =210 × 44 = 130 × 75 =565 × 10 =125 × 50 = 100 × 70 =510 × 10 =160 × 23 = 184 × 26 =633 × 12 =321 × 30 = 165 × 20 =400 × 20 =690 × 10 =280 × 12 =470 × 10 =200 × 20 =130 × 42 =550 × 10 =230 × 42 =149 × 33 =472 × 20 =660 × 14 =540 × 10 =195 × 36 =970 × 10 =60 × 70 =159 × 54 =181 × 22 =103 × 90 =102 × 96 =243 × 16 =410 × 17 =270 × 23 =242 × 40 =552 × 10 =150 × 56 =198 × 34 =180 × 10 =500 × 20 =160 × 41 =214 × 30 =30 × 80 =747 × 13 =100 × 35 =290 × 14 =251 × 39 =630 × 15 =255 × 12 =210 × 30 =114 × 73 =410 × 20 =246 × 36 =160 × 30 =110 × 81 =633 × 12 =105 × 28 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:170 × 50 =645 × 13 =514 × 16 = 304 × 25 =90 × 80 =990 × 10 = 120 × 44 =198 × 13 =380 × 10 = 600 × 10 =390 × 10 =262 × 10 = 540 × 18 =631 × 10 =550 × 16 = 335 × 12 =123 × 50 =490 × 15 = 250 × 26 =898 × 10 =144 × 30 = 165 × 32 =314 × 20 =103 × 43 = 197 × 30 =241 × 40 =80 × 20 = 100 × 45 =162 × 40 =217 × 10 = 415 × 18 =239 × 37 =120 × 70 = 140 × 60 =688 × 11 =210 × 13 = 900 × 10 =235 × 40 =200 × 40 = 630 × 10 =100 × 20 =246 × 30 = 302 × 13 =130 × 21 =555 × 12 = 800 × 10 =210 × 22 =359 × 25 = 232 × 40 =660 × 10 =120 × 35 = 820 × 10 =132 × 20 =431 × 10 = 418 × 20 =210 × 44 =200 × 20 =306 × 20 =290 × 14 =892 × 10 =262 × 10 =500 × 20 =155 × 48 =630 × 10 =152 × 45 =550 × 10 =160 × 60 =338 × 25 =755 × 10 =350 × 10 =431 × 10 =90 × 60 =630 × 15 =275 × 34 =355 × 19 =330 × 25 =200 × 32 =186 × 30 =114 × 73 =626 × 12 =824 × 10 =164 × 60 =400 × 20 =122 × 75 =140 × 30 =359 × 25 =100 × 20 =460 × 16 =200 × 40 =100 × 84 =280 × 22 =175 × 46 =103 × 90 =250 × 40 =565 × 10 =246 × 30 =159 × 57 =235 × 40 =400 × 10 =234 × 15 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:414 × 16 =148 × 34 =700 × 10 = 199 × 26 =109 × 50 =100 × 60 = 528 × 17 =150 × 42 =227 × 30 = 333 × 30 =120 × 44 =198 × 13 = 180 × 11 =280 × 12 =552 × 10 = 408 × 10 =132 × 20 =198 × 34 = 107 × 20 =732 × 10 =290 × 31 = 212 × 35 =157 × 40 =450 × 20 = 220 × 18 =820 × 10 =540 × 10 = 170 × 28 =880 × 10 =80 × 20 = 898 × 10 =660 × 10 =239 × 37 = 110 × 70 =390 × 13 =186 × 26 = 336 × 10 =548 × 10 =243 × 16 = 430 × 22 =500 × 10 =410 × 17 = 40 × 40 =330 × 24 =218 × 10 = 900 × 10 =100 × 35 =200 × 35 = 104 × 95 =310 × 28 =140 × 31 = 322 × 30 =20 × 90 =550 × 16 = 150 × 40 =120 × 44 =219 × 30 =125 × 70 =565 × 10 =162 × 40 =239 × 37 =540 × 10 =184 × 26 =390 × 10 =108 × 92 =178 × 35 =125 × 78 =520 × 10 =140 × 31 =200 × 20 =165 × 20 =305 × 30 =262 × 10 =100 × 10 =230 × 38 =328 × 19 =108 × 10 =552 × 10 =880 × 10 =110 × 70 =180 × 20 =200 × 12 =144 × 45 =146 × 60 =220 × 21 =320 × 11 =165 × 32 =195 × 36 =180 × 10 =130 × 42 =270 × 23 =114 × 73 =200 × 40 =290 × 16 =455 × 10 =160 × 30 =100 × 80 =633 × 12 =171 × 30 =217 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:760 × 10 =100 × 84 =355 × 19 = 164 × 19 =214 × 30 =103 × 90 = 310 × 28 =224 × 30 =892 × 10 = 280 × 30 =246 × 30 =730 × 10 = 200 × 30 =430 × 11 =198 × 13 = 108 × 30 =500 × 14 =898 × 10 = 200 × 50 =120 × 83 =336 × 10 = 470 × 12 =190 × 48 =300 × 29 = 953 × 10 =149 × 33 =443 × 13 = 190 × 30 =110 × 42 =199 × 26 = 500 × 20 =300 × 10 =600 × 10 = 148 × 44 =243 × 16 =320 × 23 = 660 × 14 =642 × 13 =380 × 10 = 102 × 70 =140 × 30 =123 × 50 = 330 × 24 =304 × 25 =160 × 23 = 265 × 14 =10 × 40 =431 × 10 = 250 × 40 =250 × 11 =150 × 40 = 180 × 11 =231 × 19 =135 × 68 = 400 × 20 =120 × 60 =410 × 20 =550 × 16 =830 × 10 =224 × 28 =390 × 13 =250 × 40 =160 × 30 =174 × 25 =262 × 10 =210 × 44 =688 × 11 =40 × 70 =198 × 34 =587 × 12 =670 × 11 =255 × 30 =562 × 10 =160 × 41 =245 × 36 =500 × 14 =800 × 10 =280 × 12 =135 × 26 =103 × 90 =330 × 24 =150 × 50 =631 × 10 =40 × 20 =400 × 14 =990 × 10 =349 × 26 =100 × 90 =180 × 20 =465 × 12 =168 × 10 =125 × 70 =110 × 70 =175 × 46 =165 × 32 =158 × 60 =152 × 40 =633 × 12 =280 × 30 =335 × 12 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:210 × 20 =552 × 10 =390 × 10 = 100 × 70 =140 × 60 =150 × 40 = 142 × 70 =223 × 10 =110 × 20 = 100 × 35 =244 × 30 =272 × 20 = 200 × 30 =930 × 10 =892 × 10 = 755 × 10 =875 × 10 =270 × 13 = 200 × 50 =130 × 21 =123 × 50 = 140 × 61 =100 × 30 =408 × 10 = 184 × 26 =106 × 10 =630 × 10 = 360 × 20 =40 × 40 =220 × 44 = 186 × 13 =380 × 10 =474 × 15 = 214 × 30 =587 × 15 =199 × 26 = 218 × 10 =470 × 12 =472 × 20 = 170 × 34 =160 × 11 =711 × 10 = 120 × 64 =336 × 10 =180 × 10 = 565 × 10 =235 × 40 =540 × 10 = 550 × 10 =310 × 28 =110 × 14 = 10 × 60 =165 × 20 =374 × 20 = 130 × 16 =120 × 44 =160 × 60 =160 × 23 =160 × 10 =300 × 30 =250 × 40 =640 × 10 =930 × 10 =120 × 83 =165 × 10 =123 × 50 =990 × 10 =305 × 27 =331 × 30 =139 × 50 =300 × 10 =330 × 24 =180 × 10 =125 × 76 =495 × 16 =103 × 90 =200 × 30 =300 × 20 =200 × 40 =199 × 26 =239 × 37 =400 × 10 =355 × 19 =290 × 14 =825 × 10 =898 × 10 =246 × 30 =477 × 16 =300 × 22 =120 × 53 =113 × 45 =336 × 10 =755 × 10 =50 × 60 =118 × 60 =344 × 12 =40 × 50 =400 × 20 =200 × 50 =328 × 10 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:390 × 10 =848 × 10 =175 × 46 = 472 × 20 =60 × 70 =140 × 31 = 431 × 10 =384 × 10 =217 × 10 = 408 × 10 =214 × 30 =265 × 18 = 410 × 20 =90 × 10 =688 × 11 = 110 × 11 =114 × 73 =133 × 27 = 380 × 10 =160 × 30 =200 × 20 = 235 × 40 =198 × 34 =290 × 21 = 210 × 44 =165 × 32 =100 × 68 = 470 × 12 =101 × 46 =660 × 14 = 120 × 66 =180 × 11 =630 × 12 = 444 × 20 =450 × 10 =110 × 60 = 800 × 10 =565 × 10 =545 × 15 = 50 × 10 =552 × 10 =184 × 26 = 100 × 80 =100 × 84 =650 × 15 = 150 × 10 =190 × 10 =165 × 20 = 125 × 70 =400 × 14 =162 × 40 = 953 × 10 =147 × 46 =188 × 50 = 600 × 10 =164 × 20 =40 × 40 =200 × 10 =249 × 20 =214 × 30 =100 × 84 =350 × 24 =160 × 30 =120 × 64 =100 × 35 =227 × 22 =470 × 17 =390 × 10 =120 × 83 =184 × 26 =280 × 13 =100 × 80 =100 × 20 =450 × 17 =20 × 50 =180 × 40 =160 × 36 =100 × 50 =164 × 55 =335 × 12 =160 × 33 =165 × 20 =224 × 28 =455 × 10 =148 × 50 =180 × 11 =260 × 10 =181 × 47 =310 × 28 =120 × 53 =900 × 10 =280 × 12 =158 × 60 =115 × 14 =199 × 26 =130 × 21 =600 × 10 =158 × 55 =460 × 16 =129 × 50 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:102 × 80 =270 × 23 =410 × 20 = 390 × 13 =500 × 20 =210 × 27 = 380 × 12 =228 × 20 =175 × 46 = 140 × 60 =359 × 25 =410 × 17 = 700 × 10 =370 × 23 =130 × 37 = 239 × 10 =475 × 17 =149 × 33 = 177 × 10 =215 × 12 =360 × 26 = 240 × 24 =198 × 13 =100 × 60 = 100 × 97 =336 × 10 =990 × 10 = 239 × 37 =246 × 20 =100 × 10 = 630 × 15 =330 × 24 =123 × 50 = 246 × 36 =110 × 86 =432 × 15 = 312 × 23 =395 × 20 =165 × 32 = 578 × 10 =633 × 12 =125 × 70 = 140 × 40 =120 × 40 =20 × 60 = 150 × 40 =246 × 30 =304 × 25 = 300 × 10 =180 × 30 =162 × 40 = 172 × 30 =484 × 15 =630 × 10 = 196 × 50 =648 × 10 =362 × 15 =880 × 10 =132 × 20 =160 × 30 =304 × 25 =630 × 15 =431 × 10 =130 × 54 =100 × 80 =110 × 78 =190 × 15 =184 × 26 =410 × 20 =129 × 50 =162 × 40 =183 × 50 =647 × 10 =280 × 30 =755 × 10 =800 × 10 =935 × 10 =550 × 10 =114 × 73 =565 × 10 =105 × 48 =310 × 30 =140 × 31 =110 × 10 =330 × 24 =500 × 20 =246 × 30 =410 × 17 =175 × 35 =120 × 62 =100 × 20 =440 × 12 =390 × 13 =640 × 11 =210 × 36 =248 × 25 =218 × 10 =472 × 20 =230 × 10 =224 × 28 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:248 × 20 =120 × 60 =198 × 13 = 450 × 20 =540 × 10 =688 × 11 = 598 × 10 =336 × 10 =250 × 40 = 168 × 41 =155 × 10 =820 × 10 = 80 × 10 =10 × 30 =660 × 14 = 105 × 82 =303 × 29 =630 × 10 = 160 × 23 =134 × 50 =110 × 70 = 195 × 36 =408 × 10 =214 × 30 = 990 × 10 =900 × 10 =100 × 30 = 240 × 30 =330 × 10 =953 × 10 = 100 × 25 =355 × 19 =130 × 20 = 350 × 15 =200 × 10 =125 × 70 = 246 × 36 =400 × 14 =120 × 44 = 631 × 10 =300 × 20 =130 × 69 = 540 × 14 =380 × 17 =100 × 32 = 152 × 60 =260 × 20 =143 × 68 = 180 × 10 =370 × 18 =100 × 84 = 175 × 46 =840 × 10 =174 × 36 = 217 × 10 =400 × 10 =140 × 31 =146 × 65 =180 × 11 =330 × 24 =140 × 60 =770 × 12 =160 × 60 =300 × 28 =100 × 70 =134 × 50 =400 × 13 =200 × 10 =400 × 14 =498 × 15 =160 × 30 =100 × 20 =842 × 10 =304 × 25 =130 × 32 =228 × 40 =820 × 10 =431 × 10 =220 × 30 =454 × 20 =224 × 28 =199 × 26 =40 × 40 =688 × 11 =235 × 40 =310 × 30 =654 × 15 =258 × 20 =120 × 83 =110 × 30 =930 × 10 =110 × 34 =359 × 25 =130 × 21 =892 × 10 =120 × 44 =470 × 12 =150 × 18 =286 × 30 =267 × 13 =练习范围：三位数乘两位数 题数：100月日姓名: 分秒成绩:695 × 10 =300 × 10 =305 × 13 = 550 × 16 =398 × 15 =246 × 36 = 550 × 10 =80 × 20 =331 × 10 = 565 × 10 =100 × 84 =540 × 10 = 408 × 10 =114 × 57 =118 × 50 = 165 × 32 =900 × 10 =357 × 20 = 630 × 10 =372 × 10 =250 × 40 = 214 × 30 =310 × 28 =127 × 70 = 100 × 80 =198 × 13 =184 × 26 = 280 × 30 =390 × 13 =443 × 20 = 380 × 10 =123 × 50 =262 × 10 = 633 × 12 =494 × 10 =173 × 40 = 701 × 12 =180 × 45 =120 × 63 = 800 × 10 =100 × 90 =190 × 32 = 771 × 10 =320 × 30 =210 × 27 = 216 × 10 =320 × 20 =103 × 90 = 200 × 40 =114 × 73 =198 × 34 = 552 × 10 =180 × 20 =132 × 20 = 770 × 10 =。
三位数乘两位数口算题四年级
三位数乘两位数口算题四年级一、口算题。
1. 120×20 =2. 130×30 =3. 140×20 =4. 210×30 =5. 230×20 =6. 320×30 =7. 310×20 =8. 410×20 =9. 420×30 =10. 150×40 =11. 160×30 =12. 250×20 =13. 260×30 =14. 350×20 =15. 360×20 =16. 450×20 =17. 460×30 =18. 510×20 =19. 520×30 =20. 530×20 =二、解析。
1. 对于120×20：- 先计算12×2 = 24，然后因为因数末尾共有2个0，所以在24后面添上2个0，结果为2400。
2. 对于130×30：- 计算13×3 = 39，因数末尾共有2个0，就在39后面添2个0，得到3900。
3. 对于140×20：- 先算14×2 = 28，再添2个0，结果是2800。
4. 对于210×30：- 计算21×3 = 63，然后添2个0，为6300。
5. 对于230×20：- 先算23×2 = 46，添2个0后得4600。
6. 对于320×30：- 计算32×3 = 96，添2个0得到9600。
7. 对于310×20：- 先算31×2 = 62，添2个0为6200。
8. 对于410×20：9. 对于420×30：- 先算42×3 = 126，添2个0结果是12600。
10. 对于150×40：- 计算15×4 = 60，添2个0得到6000。
四年级上册口算题(三位数乘两位数)-3000题
练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:530 × 15 = 103 × 60 = 800 × 10 = 100 × 35 = 280 × 30 = 990 × 10 = 898 × 10 = 125 × 70 = 510 × 10 = 154 × 50 = 252 × 28 = 400 × 20 = 180 × 10 = 111 × 10 = 123 × 50 = 162 × 40 = 120 × 44 = 40 × 80 = 360 × 20 = 552 × 10 = 472 × 20 = 140 × 31 = 272 × 10 = 660 × 14 = 912 × 10 = 150 × 10 = 300 × 10 = 658 × 10 = 239 × 37 = 505 × 18 = 423 × 16 = 262 × 10 = 235 × 40 = 490 × 10 = 550 × 16 = 200 × 22 = 136 × 45 = 80 × 20 = 432 × 10 = 243 × 16 = 310 × 20 = 379 × 20 =127 × 25 = 190 × 40 = 355 × 19 =540 × 10 = 160 × 30 = 408 × 10 = 100 × 80 = 953 × 10 = 210 × 44 = 500 × 10 = 102 × 40 = 165 × 32 = 688 × 11 = 911 × 10 = 576 × 10 = 304 × 25 = 160 × 50 = 114 × 73 = 515 × 10 = 470 × 10 = 578 × 10 = 541 × 10 = 170 × 28 = 954 × 10 = 728 × 10 = 335 × 10 = 650 × 10 = 184 × 26 = 630 × 15 = 315 × 30 = 200 × 50 = 331 × 10 = 199 × 26 = 420 × 15 = 100 × 20 = 129 × 50 = 218 × 10 = 335 × 12 = 410 × 20 = 280 × 12 = 600 × 10 = 120 × 53 = 215 × 23 = 200 × 20 = 140 × 13 = 270 × 30 = 580 × 10 = 500 × 20 = 100 × 70 = 930 × 10 = 175 × 46 = 160 × 60 = 330 × 24 = 150 × 56 = 900 × 10 = 565 × 10 = 100 × 90 = 265 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:720 × 10 = 246 × 36 = 390 × 13 = 223 × 40 = 199 × 26 = 103 × 90 = 156 × 60 = 235 × 40 = 290 × 14 = 280 × 30 = 160 × 23 = 80 × 20 = 424 × 15 = 290 × 17 = 140 × 24 = 820 × 10 = 250 × 20 = 310 × 28 = 335 × 12 = 162 × 40 = 336 × 10 = 312 × 31 = 148 × 20 = 175 × 46 = 10 × 50 = 129 × 54 = 595 × 12 = 184 × 26 = 359 × 25 = 198 × 13 = 990 × 10 = 331 × 10 = 953 × 10 = 410 × 17 = 400 × 10 = 285 × 20 = 100 × 84 = 140 × 60 = 400 × 20 = 150 × 40 = 155 × 60 = 262 × 10 = 160 × 60 = 134 × 40 = 140 × 31 =631 × 10 = 195 × 36 = 236 × 40 = 258 × 33 = 200 × 30 = 392 × 25 = 913 × 10 = 240 × 30 = 152 × 42 = 600 × 10 = 464 × 20 = 106 × 10 = 120 × 44 = 370 × 18 = 550 × 10 = 688 × 11 = 470 × 12 = 440 × 10 = 435 × 20 = 363 × 20 = 162 × 60 = 630 × 10 = 230 × 37 = 200 × 24 = 142 × 30 = 100 × 80 = 431 × 10 = 341 × 25 = 675 × 10 = 265 × 30 = 390 × 10 = 380 × 10 = 180 × 11 = 120 × 75 = 132 × 20 = 190 × 40 = 246 × 30 = 634 × 10 = 385 × 14 = 114 × 73 = 430 × 20 = 300 × 10 = 295 × 10 = 165 × 20 = 270 × 23 = 129 × 50 = 700 × 10 = 224 × 28 = 149 × 33 = 250 × 40 = 180 × 30 = 218 × 10 = 475 × 17 = 225 × 10 = 158 × 60 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:590 × 10 = 137 × 60 = 210 × 44 = 410 × 20 = 688 × 11 = 400 × 14 = 470 × 12 = 224 × 28 = 199 × 26 = 550 × 10 = 556 × 15 = 120 × 56 = 934 × 10 = 335 × 12 = 334 × 20 = 400 × 10 = 180 × 20 = 190 × 40 = 149 × 10 = 330 × 10 = 141 × 68 = 869 × 10 = 240 × 20 = 552 × 10 = 304 × 25 = 516 × 15 = 630 × 15 = 953 × 10 = 149 × 55 = 200 × 20 = 100 × 90 = 192 × 50 = 300 × 10 = 359 × 25 = 80 × 20 = 898 × 10 = 560 × 10 = 290 × 14 = 175 × 46 = 431 × 10 = 390 × 10 = 119 × 60 = 158 × 60 = 110 × 70 = 149 × 50 =655 × 12 = 460 × 15 = 262 × 10 = 108 × 20 = 90 × 20 = 300 × 20 = 530 × 10 = 630 × 10 = 161 × 29 = 520 × 12 = 755 × 10 = 125 × 70 = 310 × 25 = 600 × 10 = 149 × 33 = 262 × 34 = 230 × 40 = 100 × 80 = 100 × 35 = 212 × 10 = 958 × 10 = 633 × 12 = 181 × 20 = 160 × 10 = 258 × 20 = 280 × 30 = 246 × 30 = 490 × 10 = 184 × 26 = 190 × 38 = 132 × 20 = 270 × 23 = 310 × 28 = 388 × 10 = 103 × 90 = 200 × 10 = 100 × 60 = 134 × 60 = 565 × 10 = 162 × 40 = 235 × 40 = 577 × 11 = 140 × 31 = 214 × 20 = 198 × 13 = 121 × 63 = 160 × 60 = 990 × 10 = 100 × 84 = 250 × 40 = 130 × 21 = 230 × 30 = 660 × 14 = 120 × 83 = 165 × 32 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:820 × 10 = 368 × 24 = 135 × 30 = 750 × 13 = 470 × 12 = 165 × 32 = 158 × 60 = 755 × 10 = 280 × 30 = 901 × 10 = 800 × 10 = 680 × 10 = 150 × 40 = 140 × 60 = 300 × 20 = 930 × 10 = 630 × 15 = 530 × 11 = 500 × 15 = 700 × 10 = 300 × 30 = 304 × 25 = 965 × 10 = 100 × 70 = 108 × 25 = 132 × 10 = 240 × 11 = 300 × 10 = 100 × 35 = 246 × 36 = 160 × 23 = 134 × 10 = 500 × 20 = 260 × 30 = 236 × 20 = 250 × 40 = 130 × 23 = 410 × 17 = 180 × 10 = 280 × 12 = 100 × 84 = 600 × 10 = 900 × 10 = 370 × 16 = 120 × 53 =257 × 27 = 178 × 25 = 390 × 13 = 295 × 22 = 270 × 35 = 370 × 20 = 550 × 16 = 100 × 50 = 740 × 10 = 110 × 70 = 145 × 10 = 355 × 19 = 180 × 30 = 257 × 10 = 700 × 11 = 328 × 22 = 230 × 24 = 114 × 73 = 200 × 40 = 950 × 10 = 224 × 28 = 125 × 70 = 400 × 20 = 130 × 21 = 140 × 31 = 149 × 33 = 331 × 10 = 210 × 44 = 90 × 60 = 170 × 20 = 123 × 50 = 370 × 14 = 120 × 74 = 380 × 26 = 180 × 20 = 898 × 10 = 200 × 10 = 184 × 26 = 103 × 90 = 217 × 10 = 688 × 11 = 290 × 14 = 892 × 10 = 165 × 20 = 262 × 10 = 120 × 22 = 90 × 80 = 660 × 14 = 195 × 36 = 400 × 14 = 129 × 50 = 180 × 11 = 270 × 23 = 199 × 26 = 305 × 26 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:103 × 90 = 110 × 52 = 410 × 17 = 624 × 10 = 540 × 10 = 290 × 14 = 100 × 90 = 374 × 21 = 180 × 40 = 195 × 15 = 20 × 30 = 930 × 10 = 160 × 14 = 335 × 20 = 217 × 10 = 326 × 20 = 280 × 12 = 100 × 70 = 400 × 20 = 755 × 10 = 310 × 28 = 262 × 10 = 331 × 10 = 410 × 20 = 224 × 28 = 112 × 65 = 110 × 68 = 160 × 60 = 243 × 16 = 917 × 10 = 898 × 10 = 246 × 36 = 350 × 10 = 475 × 17 = 195 × 36 = 647 × 10 = 162 × 40 = 470 × 12 = 688 × 11 = 235 × 40 = 130 × 53 = 104 × 82 = 240 × 16 = 132 × 20 = 408 × 10 =160 × 23 = 120 × 55 = 700 × 10 = 198 × 34 = 740 × 12 = 160 × 30 = 900 × 10 = 140 × 31 = 104 × 40 = 390 × 10 = 199 × 26 = 355 × 19 = 230 × 34 = 100 × 20 = 410 × 12 = 90 × 40 = 500 × 20 = 270 × 31 = 190 × 10 = 338 × 25 = 600 × 10 = 390 × 13 = 100 × 80 = 197 × 40 = 928 × 10 = 631 × 10 = 310 × 22 = 469 × 16 = 129 × 50 = 252 × 30 = 130 × 70 = 184 × 26 = 130 × 21 = 630 × 15 = 240 × 30 = 115 × 50 = 550 × 10 = 466 × 10 = 380 × 10 = 630 × 10 = 336 × 10 = 198 × 13 = 260 × 20 = 431 × 10 = 343 × 23 = 180 × 10 = 633 × 12 = 182 × 45 = 300 × 20 = 300 × 10 = 652 × 15 = 149 × 33 = 214 × 30 = 492 × 18 = 472 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:468 × 20 = 200 × 40 = 103 × 90 = 660 × 14 = 140 × 51 = 125 × 70 = 240 × 26 = 493 × 12 = 140 × 65 = 624 × 15 = 180 × 10 = 100 × 84 = 180 × 11 = 184 × 26 = 130 × 21 = 431 × 10 = 210 × 44 = 50 × 10 = 953 × 10 = 20 × 10 = 320 × 26 = 199 × 26 = 120 × 53 = 630 × 10 = 470 × 12 = 755 × 10 = 239 × 32 = 270 × 23 = 631 × 10 = 782 × 10 = 175 × 46 = 688 × 11 = 160 × 23 = 120 × 44 = 363 × 21 = 500 × 20 = 200 × 20 = 134 × 40 = 120 × 80 = 280 × 12 = 200 × 27 = 110 × 70 = 232 × 10 = 180 × 20 = 130 × 20 =800 × 10 = 140 × 60 = 200 × 10 = 218 × 10 = 120 × 83 = 359 × 25 = 892 × 10 = 335 × 12 = 243 × 16 = 10 × 80 = 330 × 24 = 140 × 27 = 246 × 30 = 331 × 10 = 336 × 10 = 633 × 12 = 490 × 16 = 245 × 14 = 162 × 40 = 540 × 10 = 270 × 29 = 100 × 90 = 100 × 20 = 217 × 10 = 460 × 20 = 418 × 17 = 310 × 10 = 330 × 10 = 150 × 40 = 114 × 75 = 280 × 20 = 280 × 30 = 123 × 50 = 200 × 50 = 165 × 32 = 160 × 20 = 198 × 13 = 235 × 40 = 380 × 20 = 156 × 20 = 200 × 30 = 410 × 20 = 110 × 40 = 150 × 10 = 190 × 50 = 174 × 56 = 900 × 10 = 132 × 20 = 472 × 20 = 820 × 10 = 990 × 10 = 750 × 12 = 460 × 10 = 235 × 30 = 129 × 50 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 83 = 198 × 13 = 837 × 11 = 200 × 10 = 409 × 20 = 120 × 53 = 892 × 10 = 410 × 17 = 100 × 60 = 116 × 30 = 552 × 10 = 310 × 28 = 180 × 16 = 180 × 20 = 125 × 70 = 550 × 16 = 565 × 10 = 990 × 10 = 120 × 20 = 160 × 60 = 408 × 10 = 199 × 26 = 200 × 20 = 720 × 12 = 243 × 16 = 160 × 20 = 336 × 10 = 325 × 30 = 165 × 20 = 390 × 13 = 184 × 26 = 105 × 80 = 316 × 25 = 260 × 16 = 246 × 36 = 100 × 22 = 280 × 34 = 145 × 66 = 224 × 28 = 110 × 18 = 620 × 13 = 100 × 20 = 130 × 21 = 280 × 30 = 122 × 45 =110 × 70 = 470 × 12 = 129 × 50 = 320 × 14 = 390 × 10 = 140 × 50 = 216 × 34 = 130 × 60 = 160 × 30 = 195 × 32 = 140 × 20 = 270 × 23 = 898 × 10 = 198 × 49 = 70 × 40 = 140 × 10 = 900 × 10 = 170 × 55 = 130 × 69 = 100 × 35 = 700 × 10 = 630 × 10 = 885 × 10 = 50 × 80 = 400 × 20 = 196 × 26 = 334 × 23 = 210 × 10 = 335 × 12 = 510 × 19 = 332 × 25 = 560 × 12 = 755 × 10 = 331 × 10 = 130 × 41 = 410 × 20 = 260 × 15 = 820 × 10 = 390 × 16 = 314 × 10 = 100 × 84 = 500 × 17 = 633 × 12 = 206 × 40 = 217 × 10 = 160 × 46 = 600 × 10 = 598 × 13 = 120 × 64 = 150 × 20 = 160 × 23 = 688 × 11 = 660 × 14 = 720 × 10 = 149 × 33 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:149 × 33 = 445 × 18 = 330 × 24 = 675 × 10 = 160 × 23 = 196 × 45 = 660 × 14 = 345 × 16 = 100 × 35 = 953 × 10 = 150 × 50 = 40 × 40 = 470 × 12 = 331 × 10 = 100 × 30 = 140 × 31 = 480 × 10 = 175 × 46 = 400 × 20 = 612 × 15 = 380 × 10 = 350 × 13 = 313 × 30 = 180 × 11 = 100 × 60 = 500 × 17 = 299 × 30 = 160 × 15 = 122 × 80 = 990 × 10 = 198 × 34 = 204 × 33 = 150 × 37 = 246 × 36 = 150 × 38 = 304 × 25 = 167 × 30 = 150 × 40 = 330 × 25 = 266 × 15 = 634 × 10 = 631 × 10 = 472 × 20 = 239 × 37 = 196 × 32 =280 × 12 = 431 × 10 = 198 × 13 = 335 × 12 = 230 × 38 = 103 × 90 = 100 × 40 = 130 × 21 = 115 × 78 = 195 × 36 = 100 × 52 = 60 × 20 = 165 × 20 = 426 × 10 = 217 × 10 = 839 × 10 = 600 × 10 = 230 × 43 = 250 × 40 = 200 × 10 = 120 × 34 = 200 × 20 = 100 × 84 = 262 × 10 = 116 × 20 = 159 × 30 = 290 × 20 = 123 × 50 = 117 × 49 = 130 × 10 = 70 × 20 = 220 × 33 = 630 × 15 = 536 × 10 = 310 × 28 = 185 × 10 = 120 × 83 = 633 × 12 = 280 × 30 = 770 × 10 = 90 × 10 = 136 × 65 = 143 × 40 = 300 × 30 = 410 × 17 = 145 × 55 = 506 × 10 = 210 × 26 = 80 × 50 = 270 × 23 = 110 × 39 = 380 × 18 = 195 × 28 = 235 × 40 = 430 × 15 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:330 × 24 = 863 × 10 = 165 × 20 = 552 × 10 = 210 × 30 = 160 × 60 = 80 × 20 = 160 × 58 = 228 × 15 = 475 × 17 = 130 × 72 = 100 × 50 = 195 × 36 = 170 × 30 = 990 × 10 = 336 × 10 = 199 × 26 = 930 × 10 = 115 × 30 = 410 × 17 = 500 × 10 = 633 × 12 = 198 × 13 = 214 × 30 = 217 × 10 = 180 × 11 = 631 × 10 = 400 × 20 = 170 × 44 = 162 × 40 = 210 × 44 = 175 × 46 = 580 × 14 = 129 × 50 = 200 × 16 = 630 × 10 = 250 × 35 = 318 × 30 = 224 × 28 = 235 × 40 = 153 × 30 = 820 × 10 = 100 × 90 = 100 × 40 = 130 × 21 =198 × 34 = 160 × 23 = 180 × 10 = 700 × 10 = 246 × 36 = 110 × 65 = 220 × 43 = 630 × 15 = 152 × 30 = 500 × 20 = 335 × 12 = 120 × 83 = 270 × 15 = 487 × 20 = 390 × 13 = 100 × 20 = 898 × 10 = 100 × 84 = 344 × 10 = 182 × 45 = 244 × 10 = 120 × 44 = 225 × 14 = 717 × 10 = 250 × 20 = 800 × 10 = 550 × 16 = 123 × 50 = 410 × 20 = 140 × 60 = 270 × 23 = 250 × 40 = 270 × 20 = 280 × 20 = 472 × 20 = 158 × 17 = 145 × 46 = 550 × 10 = 170 × 10 = 892 × 10 = 264 × 35 = 932 × 10 = 688 × 11 = 796 × 10 = 400 × 14 = 200 × 10 = 307 × 24 = 280 × 12 = 320 × 20 = 154 × 49 = 138 × 12 = 150 × 43 = 200 × 30 = 431 × 10 = 132 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:550 × 10 = 190 × 50 = 688 × 11 = 50 × 40 = 410 × 11 = 800 × 10 = 110 × 28 = 500 × 10 = 110 × 10 = 345 × 22 = 239 × 11 = 180 × 36 = 125 × 70 = 400 × 10 = 930 × 10 = 410 × 20 = 246 × 30 = 224 × 28 = 383 × 25 = 900 × 10 = 470 × 12 = 40 × 60 = 199 × 26 = 200 × 20 = 120 × 44 = 408 × 10 = 170 × 26 = 158 × 60 = 135 × 56 = 240 × 30 = 100 × 40 = 168 × 45 = 180 × 10 = 400 × 14 = 162 × 40 = 560 × 15 = 898 × 10 = 953 × 10 = 500 × 20 = 540 × 10 = 312 × 25 = 239 × 37 = 114 × 10 = 100 × 10 = 175 × 46 =136 × 70 = 335 × 12 = 165 × 32 = 244 × 40 = 130 × 40 = 100 × 20 = 582 × 15 = 700 × 10 = 149 × 33 = 246 × 36 = 120 × 83 = 471 × 16 = 30 × 30 = 243 × 16 = 240 × 26 = 130 × 21 = 100 × 84 = 600 × 10 = 100 × 35 = 336 × 10 = 520 × 10 = 625 × 11 = 200 × 50 = 670 × 10 = 331 × 10 = 482 × 15 = 169 × 11 = 250 × 40 = 123 × 50 = 298 × 10 = 552 × 10 = 235 × 10 = 200 × 30 = 431 × 10 = 110 × 70 = 272 × 30 = 380 × 10 = 410 × 18 = 300 × 10 = 280 × 12 = 685 × 14 = 550 × 16 = 263 × 33 = 146 × 20 = 210 × 44 = 130 × 75 = 565 × 10 = 125 × 50 = 100 × 70 = 510 × 10 = 160 × 23 = 184 × 26 = 633 × 12 = 321 × 30 = 165 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:400 × 20 = 690 × 10 = 280 × 12 = 470 × 10 = 200 × 20 = 130 × 42 = 550 × 10 = 230 × 42 = 149 × 33 = 472 × 20 = 660 × 14 = 540 × 10 = 195 × 36 = 970 × 10 = 60 × 70 = 159 × 54 = 181 × 22 = 103 × 90 = 102 × 96 = 243 × 16 = 410 × 17 = 270 × 23 = 242 × 40 = 552 × 10 = 150 × 56 = 198 × 34 = 180 × 10 = 500 × 20 = 160 × 41 = 214 × 30 = 30 × 80 = 747 × 13 = 100 × 35 = 290 × 14 = 251 × 39 = 630 × 15 = 255 × 12 = 210 × 30 = 114 × 73 = 410 × 20 = 246 × 36 = 160 × 30 = 110 × 81 = 633 × 12 = 105 × 28 =170 × 50 = 645 × 13 = 514 × 16 = 304 × 25 = 90 × 80 = 990 × 10 = 120 × 44 = 198 × 13 = 380 × 10 = 600 × 10 = 390 × 10 = 262 × 10 = 540 × 18 = 631 × 10 = 550 × 16 = 335 × 12 = 123 × 50 = 490 × 15 = 250 × 26 = 898 × 10 = 144 × 30 = 165 × 32 = 314 × 20 = 103 × 43 = 197 × 30 = 241 × 40 = 80 × 20 = 100 × 45 = 162 × 40 = 217 × 10 = 415 × 18 = 239 × 37 = 120 × 70 = 140 × 60 = 688 × 11 = 210 × 13 = 900 × 10 = 235 × 40 = 200 × 40 = 630 × 10 = 100 × 20 = 246 × 30 = 302 × 13 = 130 × 21 = 555 × 12 = 800 × 10 = 210 × 22 = 359 × 25 = 232 × 40 = 660 × 10 = 120 × 35 = 820 × 10 = 132 × 20 = 431 × 10 = 418 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:210 × 44 = 200 × 20 = 306 × 20 = 290 × 14 = 892 × 10 = 262 × 10 = 500 × 20 = 155 × 48 = 630 × 10 = 152 × 45 = 550 × 10 = 160 × 60 = 338 × 25 = 755 × 10 = 350 × 10 = 431 × 10 = 90 × 60 = 630 × 15 = 275 × 34 = 355 × 19 = 330 × 25 = 200 × 32 = 186 × 30 = 114 × 73 = 626 × 12 = 824 × 10 = 164 × 60 = 400 × 20 = 122 × 75 = 140 × 30 = 359 × 25 = 100 × 20 = 460 × 16 = 200 × 40 = 100 × 84 = 280 × 22 = 175 × 46 = 103 × 90 = 250 × 40 = 565 × 10 = 246 × 30 = 159 × 57 = 235 × 40 = 400 × 10 = 234 × 15 =414 × 16 = 148 × 34 = 700 × 10 = 199 × 26 = 109 × 50 = 100 × 60 = 528 × 17 = 150 × 42 = 227 × 30 = 333 × 30 = 120 × 44 = 198 × 13 = 180 × 11 = 280 × 12 = 552 × 10 = 408 × 10 = 132 × 20 = 198 × 34 = 107 × 20 = 732 × 10 = 290 × 31 = 212 × 35 = 157 × 40 = 450 × 20 = 220 × 18 = 820 × 10 = 540 × 10 = 170 × 28 = 880 × 10 = 80 × 20 = 898 × 10 = 660 × 10 = 239 × 37 = 110 × 70 = 390 × 13 = 186 × 26 = 336 × 10 = 548 × 10 = 243 × 16 = 430 × 22 = 500 × 10 = 410 × 17 = 40 × 40 = 330 × 24 = 218 × 10 = 900 × 10 = 100 × 35 = 200 × 35 = 104 × 95 = 310 × 28 = 140 × 31 = 322 × 30 = 20 × 90 = 550 × 16 = 150 × 40 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 44 = 219 × 30 = 125 × 70 = 565 × 10 = 162 × 40 = 239 × 37 = 540 × 10 = 184 × 26 = 390 × 10 = 108 × 92 = 178 × 35 = 125 × 78 = 520 × 10 = 140 × 31 = 200 × 20 = 165 × 20 = 305 × 30 = 262 × 10 = 100 × 10 = 230 × 38 = 328 × 19 = 108 × 10 = 552 × 10 = 880 × 10 = 110 × 70 = 180 × 20 = 200 × 12 = 144 × 45 = 146 × 60 = 220 × 21 = 320 × 11 = 165 × 32 = 195 × 36 = 180 × 10 = 130 × 42 = 270 × 23 = 114 × 73 = 200 × 40 = 290 × 16 = 455 × 10 = 160 × 30 = 100 × 80 = 633 × 12 = 171 × 30 = 217 × 10 =760 × 10 = 100 × 84 = 355 × 19 = 164 × 19 = 214 × 30 = 103 × 90 = 310 × 28 = 224 × 30 = 892 × 10 = 280 × 30 = 246 × 30 = 730 × 10 = 200 × 30 = 430 × 11 = 198 × 13 = 108 × 30 = 500 × 14 = 898 × 10 = 200 × 50 = 120 × 83 = 336 × 10 = 470 × 12 = 190 × 48 = 300 × 29 = 953 × 10 = 149 × 33 = 443 × 13 = 190 × 30 = 110 × 42 = 199 × 26 = 500 × 20 = 300 × 10 = 600 × 10 = 148 × 44 = 243 × 16 = 320 × 23 = 660 × 14 = 642 × 13 = 380 × 10 = 102 × 70 = 140 × 30 = 123 × 50 = 330 × 24 = 304 × 25 = 160 × 23 = 265 × 14 = 10 × 40 = 431 × 10 = 250 × 40 = 250 × 11 = 150 × 40 = 180 × 11 = 231 × 19 = 135 × 68 = 400 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 60 = 410 × 20 = 550 × 16 = 830 × 10 = 224 × 28 = 390 × 13 = 250 × 40 = 160 × 30 = 174 × 25 = 262 × 10 = 210 × 44 = 688 × 11 = 40 × 70 = 198 × 34 = 587 × 12 = 670 × 11 = 255 × 30 = 562 × 10 = 160 × 41 = 245 × 36 = 500 × 14 = 800 × 10 = 280 × 12 = 135 × 26 = 103 × 90 = 330 × 24 = 150 × 50 = 631 × 10 = 40 × 20 = 400 × 14 = 990 × 10 = 349 × 26 = 100 × 90 = 180 × 20 = 465 × 12 = 168 × 10 = 125 × 70 = 110 × 70 = 175 × 46 = 165 × 32 = 158 × 60 = 152 × 40 = 633 × 12 = 280 × 30 = 335 × 12 =210 × 20 = 552 × 10 = 390 × 10 = 100 × 70 = 140 × 60 = 150 × 40 = 142 × 70 = 223 × 10 = 110 × 20 = 100 × 35 = 244 × 30 = 272 × 20 = 200 × 30 = 930 × 10 = 892 × 10 = 755 × 10 = 875 × 10 = 270 × 13 = 200 × 50 = 130 × 21 = 123 × 50 = 140 × 61 = 100 × 30 = 408 × 10 = 184 × 26 = 106 × 10 = 630 × 10 = 360 × 20 = 40 × 40 = 220 × 44 = 186 × 13 = 380 × 10 = 474 × 15 = 214 × 30 = 587 × 15 = 199 × 26 = 218 × 10 = 470 × 12 = 472 × 20 = 170 × 34 = 160 × 11 = 711 × 10 = 120 × 64 = 336 × 10 = 180 × 10 = 565 × 10 = 235 × 40 = 540 × 10 = 550 × 10 = 310 × 28 = 110 × 14 = 10 × 60 = 165 × 20 = 374 × 20 = 130 × 16 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 44 = 160 × 60 = 160 × 23 = 160 × 10 = 300 × 30 = 250 × 40 = 640 × 10 = 930 × 10 = 120 × 83 = 165 × 10 = 123 × 50 = 990 × 10 = 305 × 27 = 331 × 30 = 139 × 50 = 300 × 10 = 330 × 24 = 180 × 10 = 125 × 76 = 495 × 16 = 103 × 90 = 200 × 30 = 300 × 20 = 200 × 40 = 199 × 26 = 239 × 37 = 400 × 10 = 355 × 19 = 290 × 14 = 825 × 10 = 898 × 10 = 246 × 30 = 477 × 16 = 300 × 22 = 120 × 53 = 113 × 45 = 336 × 10 = 755 × 10 = 50 × 60 = 118 × 60 = 344 × 12 = 40 × 50 = 400 × 20 = 200 × 50 = 328 × 10 =390 × 10 = 848 × 10 = 175 × 46 = 472 × 20 = 60 × 70 = 140 × 31 = 431 × 10 = 384 × 10 = 217 × 10 = 408 × 10 = 214 × 30 = 265 × 18 = 410 × 20 = 90 × 10 = 688 × 11 = 110 × 11 = 114 × 73 = 133 × 27 = 380 × 10 = 160 × 30 = 200 × 20 = 235 × 40 = 198 × 34 = 290 × 21 = 210 × 44 = 165 × 32 = 100 × 68 = 470 × 12 = 101 × 46 = 660 × 14 = 120 × 66 = 180 × 11 = 630 × 12 = 444 × 20 = 450 × 10 = 110 × 60 = 800 × 10 = 565 × 10 = 545 × 15 = 50 × 10 = 552 × 10 = 184 × 26 = 100 × 80 = 100 × 84 = 650 × 15 = 150 × 10 = 190 × 10 = 165 × 20 = 125 × 70 = 400 × 14 = 162 × 40 = 953 × 10 = 147 × 46 = 188 × 50 = 600 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:164 × 20 = 40 × 40 = 200 × 10 = 249 × 20 = 214 × 30 = 100 × 84 = 350 × 24 = 160 × 30 = 120 × 64 = 100 × 35 = 227 × 22 = 470 × 17 = 390 × 10 = 120 × 83 = 184 × 26 = 280 × 13 = 100 × 80 = 100 × 20 = 450 × 17 = 20 × 50 = 180 × 40 = 160 × 36 = 100 × 50 = 164 × 55 = 335 × 12 = 160 × 33 = 165 × 20 = 224 × 28 = 455 × 10 = 148 × 50 = 180 × 11 = 260 × 10 = 181 × 47 = 310 × 28 = 120 × 53 = 900 × 10 = 280 × 12 = 158 × 60 = 115 × 14 = 199 × 26 = 130 × 21 = 600 × 10 = 158 × 55 = 460 × 16 = 129 × 50 =102 × 80 = 270 × 23 = 410 × 20 = 390 × 13 = 500 × 20 = 210 × 27 = 380 × 12 = 228 × 20 = 175 × 46 = 140 × 60 = 359 × 25 = 410 × 17 = 700 × 10 = 370 × 23 = 130 × 37 = 239 × 10 = 475 × 17 = 149 × 33 = 177 × 10 = 215 × 12 = 360 × 26 = 240 × 24 = 198 × 13 = 100 × 60 = 100 × 97 = 336 × 10 = 990 × 10 = 239 × 37 = 246 × 20 = 100 × 10 = 630 × 15 = 330 × 24 = 123 × 50 = 246 × 36 = 110 × 86 = 432 × 15 = 312 × 23 = 395 × 20 = 165 × 32 = 578 × 10 = 633 × 12 = 125 × 70 = 140 × 40 = 120 × 40 = 20 × 60 = 150 × 40 = 246 × 30 = 304 × 25 = 300 × 10 = 180 × 30 = 162 × 40 = 172 × 30 = 484 × 15 = 630 × 10 = 196 × 50 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:648 × 10 = 362 × 15 = 880 × 10 = 132 × 20 = 160 × 30 = 304 × 25 = 630 × 15 = 431 × 10 = 130 × 54 = 100 × 80 = 110 × 78 = 190 × 15 = 184 × 26 = 410 × 20 = 129 × 50 = 162 × 40 = 183 × 50 = 647 × 10 = 280 × 30 = 755 × 10 = 800 × 10 = 935 × 10 = 550 × 10 = 114 × 73 = 565 × 10 = 105 × 48 = 310 × 30 = 140 × 31 = 110 × 10 = 330 × 24 = 500 × 20 = 246 × 30 = 410 × 17 = 175 × 35 = 120 × 62 = 100 × 20 = 440 × 12 = 390 × 13 = 640 × 11 = 210 × 36 = 248 × 25 = 218 × 10 = 472 × 20 = 230 × 10 = 224 × 28 =248 × 20 = 120 × 60 = 198 × 13 = 450 × 20 = 540 × 10 = 688 × 11 = 598 × 10 = 336 × 10 = 250 × 40 = 168 × 41 = 155 × 10 = 820 × 10 = 80 × 10 = 10 × 30 = 660 × 14 = 105 × 82 = 303 × 29 = 630 × 10 = 160 × 23 = 134 × 50 = 110 × 70 = 195 × 36 = 408 × 10 = 214 × 30 = 990 × 10 = 900 × 10 = 100 × 30 = 240 × 30 = 330 × 10 = 953 × 10 = 100 × 25 = 355 × 19 = 130 × 20 = 350 × 15 = 200 × 10 = 125 × 70 = 246 × 36 = 400 × 14 = 120 × 44 = 631 × 10 = 300 × 20 = 130 × 69 = 540 × 14 = 380 × 17 = 100 × 32 = 152 × 60 = 260 × 20 = 143 × 68 = 180 × 10 = 370 × 18 = 100 × 84 = 175 × 46 = 840 × 10 = 174 × 36 = 217 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:400 × 10 = 140 × 31 = 146 × 65 = 180 × 11 = 330 × 24 = 140 × 60 = 770 × 12 = 160 × 60 = 300 × 28 = 100 × 70 = 134 × 50 = 400 × 13 = 200 × 10 = 400 × 14 = 498 × 15 = 160 × 30 = 100 × 20 = 842 × 10 = 304 × 25 = 130 × 32 = 228 × 40 = 820 × 10 = 431 × 10 = 220 × 30 = 454 × 20 = 224 × 28 = 199 × 26 = 40 × 40 = 688 × 11 = 235 × 40 = 310 × 30 = 654 × 15 = 258 × 20 = 120 × 83 = 110 × 30 = 930 × 10 = 110 × 34 = 359 × 25 = 130 × 21 = 892 × 10 = 120 × 44 = 470 × 12 = 150 × 18 = 286 × 30 = 267 × 13 =。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
17、三位数乘两位数的口算
教学目标：
1、在解决实际问题的过程中，让学生经历发现整百数乘整十数和几百几十乘整十数的口算方法的全过程，
体验其口算方法的多样化，并能正确进行口算。
2、通过比较各种方法的优缺点，寻找最佳方法，训练学生优化策略的思想方法。
3、培养学生在自主探索、合作交流的活动中，进一步体验数学学习的探索性，获得成功的体验。
教学重点：
体验口算方法的多样化，并能正确进行口算。
教学难点：
整百数乘整十数和几百几十乘整十数口算的算理。
教具学具：
口算卡片、数字卡片
教学过程：
一、复习引入
1、口算下面各题（课件出示）
30×4 70×50 300×7 40×60
200×8 20×30 30×30 50×60
交流时抽取70×50、200×8、50×60三个题目让学生说一说思考的过程，再引导学生总结出整百数乘个
位数、整十数乘整十数的口算方法。
[设计意图：课堂引入，从学生已有的知识经验出发，在问题解决中自然引出新的学习内容。熟中孕新，使
学生易于接受。]
2、谈话：我们已经掌握了整百数乘个位数、整十数乘整十数的口算方法，这节课我们一起再来研究整百
数乘整十数和几百几十乘整十数的口算，大家有兴趣吗？
二、合作探究，解决问题
谈话：首先我们观察一下情境图，你能提出什么问题呢？
学生提出问题：（1）一组一共发放了多少份宣传资料？
（2）二组一共发放了多少份宣传资料？
1、提问：第一个问题怎样解决？能列出算式吗？
指名回答：400×20= （份）
小组讨论，交流口算方法。（教师巡视）
谁能说一说你是怎样口算出来的？
学生的算法可能有以下两种情况：
4×2＝8 400×2＝800
400×2＝8000 800×10＝8000
全班交流，选择自己喜欢的方法。对学有困难的学生及时给予指导。
[设计意图：利用学生已有的知识经验，放手让学生在小组合作中探讨整百数乘整十数的口算方法，体验其
口算方法的多样性，同时从多种方法中选择更简捷的方法进行计算，体验了解决问题策略的多样性，把学
习的主动权交给学生，让学生体会自由选择的轻松和快乐。]
小练习：课本第34页自主练习一。
2、提问：第二个问题怎样解决？能列出算式吗？
指名回答：210×30= （份）
小组讨论，交流口算方法。（教师巡视）
谁能说一说你是怎样口算出来的？
学生的算法可能有以下两种情况：
21×3＝63 210×3＝630
210×3＝6300 630×10＝6300
全班交流，选择自己喜欢的方法。对学有困难的学生及时给予指导。
小练习：课本第34页自主练习三。
三、展示交流，内化提升
1、口算
900×60= 200×50＝ 300×50= 200×30＝ 500×80＝
130×20＝ 250×40= 520×20= 440×20= 160×50=
指名说得数，并说一说每个题的口算过程。
2、完成“自主练习”第2题
（1） 指名学生读题，并分析表格中提供的信息。
（2） 鼓励学生自主解决（1）、（2）、（3）小题。
（3） 通过小组讨论解决第（4）小题，使学生在交流中提出答案的不唯一性。
（4） 提问：你还想和谁去哪里旅游，需要花多少钱？说一说你的消费计划。
3、完成“自主练习”第5题
（1） 引导学生观察统计表，理解统计表中的内容：表中给出了五种商品的平均日销售量。
（2） 自主解决第（1）小题。
（3） 解决第（2）小题时，需要引导学生根据9月份的销售量对10月份的销售量进行预测。交流时，
要让学生说一说自己是怎样预测的，理由是什么。
[设计意图：通过练习，培养学生提出问题、解决问题的能力，使学生体会到数学在实际生活中的广泛应用，
以便对今后的数学学习继续产生更浓厚的兴趣，激发学生的探究欲望，同时，也让学生解决问题的过程中
体验了解决问题策略的多样性。]
四、课堂小结
这节课你有什么收获？你对自己的表现满意吗?
[设计意图：学生可能总结得比较简单。教师注意引导学生用自己的话汇报口算的方法及这样口算的理由，
尤其是提醒学生注意在计算的时候，千万不要忘记没有参与计算的０要及时补在积的末尾。]
板书设计： 17、三位数乘两位数的口算
（1）一组一共发放了多少份宣传资料？ （2）二组一共发放了多少份宣传资料？
400×20= 8000（份） 210×30= 6300（份）
答：一组一共发放了8000份宣传资料。 答：二组一共发放了6300份宣传资料。