20以内退位减法应用题
【小学】人教版一年级数学下册第二章《20以内的退位减法》模拟卷(第二套)

人教版一年级数学下册第二章《2021的退位减法》考前卷(第二套)一.选择题(共8小题)1.大猴16只,小猴9只.大猴比小猴多()只.A.16 B.9 C.72.16﹣8=()A.3 B.4 C.8 D.93.看图列式计算,正确的是()A.15﹣9=6(枝)B.156=21(枝)C.15﹣6=9(枝)D.69=15(枝)4.有15个气球,卖了9个,还剩下()个.A.5 B.6 C.75.小青有语文本、数学本共14本,其中语文本有8本,数学本有多少本?正确的解答是()A.14﹣6=8(本)B.14﹣8=6(本)C.14﹣6=9(本)D.148=22(本)6.有铅笔15枝,笔套8个.要把这些铅笔都套上笔套,还少()个笔套.A.5 B.6 C.7 D.87.“____7=13”,在____里应填的数是()A.6 B.8 C.10 D.98.妈妈买回来14个苹果,比梨多5个,那么梨有()个.A.8 B.9 C.10二.填空题(共8小题)9.在横线里填上“>”“<”或“=”.13﹣6 6 15﹣4 13﹣2 99 1983 66 17﹣5 2 19﹣7 8﹣610.4 =12 15﹣=7 12﹣=314﹣=5 5 =11 ﹣6=711.小白兔采了12朵蘑菇,小灰兔采了8朵蘑菇,小灰兔比小白兔少采了朵蘑菇.12.填一填.(1)86=﹣6=8﹣8=6(2)67=﹣7=6﹣6=713.猜猜我是几.☆9=15 6★=159〇=18 14=△9☆是;★是;〇是;△是.14.算一算,填一填,你有什么发现?11﹣9=112﹣9=213﹣9=314﹣9=4我发现了:十几减9的差等于.15.原来有个桃子,吃掉个,还剩下个.16.一(1)班数学学具借出情况如下.原有12套11个15捆借出8套个8捆还剩套8个捆三.判断题(共5小题)17.被减数是14,减数是9,差是5.(判断对错)18.小摊一共有12个风车,小明买了8个,还剩下2个.(判断对错)19.减数是6,被减数是15,差是9.(判断对错)2021来有12个萝卜,小兔吃了7个萝卜,还剩6个萝卜.(判断对错)21.比16小7的数是10.(判断对错)四.计算题(共2小题)22.看谁算的又快又好.35=5﹣0=28=16﹣6=115=17﹣4=88=9﹣62=75=10﹣7=39=197=23.看图列式计算。
人教版一年级下册数学第2单元20以内的退位减法应用题训练(有答案)

答:小猫第二次钓了()条鱼。
9.教室里原来有10个小朋友,刚进来了7个小朋友,又走出去9个小朋友,现在有多少个小朋友?
()
答:现在有 个小朋友。
10.学校门口有2排房子,共12间,一排有5间,另一排有多少间?
11.树上原来有17个 ,小猴子吃了8个,树上还剩几个 ?
(个)
答:树上还剩 个桃子。
(人)
答:这时车上有()人。
5.学雷锋做好事,每人要做15件好事。小雨再做6件就完成任务了,他已做了多少件?
(件)
口答:他已做了()件。
6.悟空一共摘了14个桃子和8个西瓜,八戒吃了8个桃子,还剩多少个桃子?
()
7.有12朵花,插在2个花瓶里,一个花瓶插4朵,另一个花瓶插多少朵?
8.小猫第二次钓了多少条鱼?
12.20-9=11(只)
13.17-9=8(支);
8
14.15-8=7(人);7
15.9本
16.11-8=3(个)
17.(1)16只
(2)8只
18.6元
19.7个
20.13-4=9;9
12.草地里有20只兔子,有9只乌龟,乌龟比小兔少几只?
()
13.小文原来有17支彩笔,送给小丽9支,小文还剩多少支彩笔?
()
口答:小文还剩 支彩笔。
14.5个大人带15个小朋友去公园玩,其中小男孩有8人,小女孩有多少人?
=
答:小女孩有()人。
15.小丽买了15本课外书和8本笔记本。课外书中有6本故事书,其它课外书有几本?
人教版一年级下册数学第2单元 20以内的退位减法应用题训练
1.有12根孔雀羽毛,插在2个花瓶里。一个花瓶里插8根,另一个花瓶里插几根?
20以内的退位减法专项练习题附答案(典型题)

20以内的退位减法专项练习题一.计算题(共50题, 共463分)1.算一算。
15-4+4= 4+1-5= 14-14+16= 1+4+15=1+6+12= 3-3+8= 5+13-12= 12-9+14= 14-5+8= 17-5+3= 3+3+5= 6-6+7= 16-5-7= 9+10-2= 14-5+11= 12-7+14= 2.直接写得数。
12-8=16-9=9+5= 13+3=6+7= 13-0=16-6=11-7=14-7=18-9=13-8=0+11=17-5=8+6= 15-7=12-7=17-3-8=18-8+6=15-7+9=4+9-8=3.看谁算得又对又快。
15-5= 16-4= 12+6= 19-2=13+2= 12-10 11-10= 16-3=4+6-3= 12+5-7= 2+6-5= 20-10-10=4.看图列式。
_____-_____=_____(个)5.看图列式。
_____-_____=_____(块)6.看图列示计算。
8.算一算。
18-16-1= 16-2-11= 6+13-6= 3+11-11=9+1+7= 19-4-7= 4+8+1= 14+4-15=19-2-7= 6-1+15= 9-2+3= 9-3+7=9.我会列式计算。
(1)一个加数是6, 另一个加数是9, 它们的和是多少?(2)被减数是14, 减数是3, 差是多少?10.看图列式计算。
(个)(颗)11.看图列式。
(1)_____+_____=_____(2)_____-_____=_____12.口算。
5+6= 12-8= 12+0=8+4-3=19-7=9+8= 17-8= 4+8+2=4+11=16-8=13-7= 9+5-7=13-10=14+4=8+5= 17-9-8=12+7= 11-7=10-7= 11-7+8=13.算一算。
8+2= 5+13= 17-9= 13-2= 9+5=8+5= 16-7= 9+1= 12+7= 19+1=8+8-16= 11-2-3= 3-1+16= 20-8-9=16+2-15= 20-7-12= 2+16-14= 3+11-7=14.算一算。
人教版一年级下册数学第二单元20以内的退位减法应用题训练(带答案)

人教版一年级下册数学第二单元20以内的退位减法应用题训练1.一辆公共汽车,到一小公交车站后上来8人,下去了7人,现在有16人,原来车上有多少人?2.一辆公交车上原有18人,到站后下去了9人,又上来了3人,现在这辆公交车上有多少人?(人)3.姐姐过生日了。
蛋糕上有15支蜡烛,吹灭了7支,还有多少支亮着?4.运南瓜。
小象运来7个南瓜,象妈妈运来12个南瓜。
小象比妈妈少运几个南瓜?()5.修车场停了16辆汽车,开走一些后,还剩7辆。
开走了多少辆?(辆)口答:开走了()辆。
6.小明每天要写17个毛笔字,背2首古诗,今天他已经写了8个毛笔字,还要写多少个毛笔字才能完成任务?7.白兔有14只,比灰兔多6只,灰兔有多少只?()8.同学们浇树,小兰浇了7棵,小丽浇了8棵,小明浇了11棵,小丽比小明少浇几棵?()9.有12朵花,插在2个花瓶里,一个花瓶插4朵,另一个花瓶插多少朵?10.兔有14只,狗有6只,猫有9只。
(1)猫和狗一共有多少只?=(只)(2)狗比兔少多少只?=(只)11.农民伯伯摘草莓,上午摘了13箱,下午摘了8箱,上午比下午多摘了几箱。
=(箱)12.幼儿园大班有17个小朋友,现在有8个苹果,每人一个,还差几个苹果?13.小明家养了13只鸭,16只鸡,公鸡有7只,母鸡有几只?14.王奶奶家养了18只鸡和9只羊,羊比鸡少几只?()答:羊比鸡少只。
15.树上共结了15个桃子,摘了8个,还剩几个?(个)16.体育室里有14个足球和13个篮球。
小明借走了5个足球,还剩几个足球?(个)17.鱼缸里有13条金鱼,黑色的金鱼有8条,剩下的都是红色的,红色的金鱼有多少条?(条)18.小红和小刚一共做了12朵花,小刚做了9朵,其中红色的有5朵。
小红做了多少朵?(朵)19.树上原来有13个苹果,摘了6个。
树上还剩多少个?(个)20.学校体育室有篮球11个,足球7个,排球8个。
(1)足球和排球一共有多少个?(个)(2)借走3个篮球,体育室还剩多少个篮球?(个)参考答案:1.15人2.18-9+3=123.8支4.12-7=5(个)5.16-7=9;96.9个7.14-6=8(只)-=(棵)8.11839.12-4=8(朵)10.(1)6+9=15(2)14-6=811.13-8=512.17-8=9(个)13.16-7=9(只)14.18-9=9(只);915.15-8=7(个)16.14-5=9(个)17.13-8=518.12-9=3(朵)19.13-6=7(个)20.(1)7+8=15(2)11-3=8。
20以内退位减法应用题.ppt

12
□○□=□( )
?
12
□12 ○□4 =□8 (本)
13
□○□=□
13
□13 ○□7 =□6
?
11
=
?
11
11
3= 8
?
12
□○□=□
?
12
□12 ○□4 =□8
小朋友制作了小黄旗小红旗一共13个,其中红色小旗5 个,黄色小旗几个?
小朋友制作了小黄旗小红旗一共13个,其中红色小旗5 个,黄色小旗几个?
小白兔和小灰兔一共采了11个萝卜,其中小白兔采了3个, 小灰兔采了多少个?
11-3=8
大卡车和小汽车一共12辆,大卡车3辆,小汽车多少辆?
12-3=9
11个
□○□=□
11个
11-4=7
12个
□○□=□(个)
12个
12-4=8
11个
□○□=□
11个
11-2=9
11
11
11
3
8
13-5=8
学校有兰花和菊花共15盆,兰花有8盆,菊花有几 盆?
小青两次画了12个 ,第一次画了7个,第二次画 了多少个?
学校有兰花和菊花共15盆,兰花有8盆,菊花有几 盆?
15-8=7
小青两次画了12个 ,第一次画了7个,第二次画 了多少个?
12-7=5Leabharlann 小红家有苹果和梨子共13个,苹果有6个,梨子有多少个?
小红家有苹果和梨子共13个,苹果有6个,梨子有多少个? 13-6=7
一共有13个学生,其中男生4个,问女生几个?
一共有13个学生,其中男生4个,问女生几个? 13-4=9
小白兔和小灰兔一共采了11个萝卜,其中小白兔采了3个, 小灰兔采了多少个?
苏教版一年级下册数学第一单元20以内的退位减法应用题训练

苏教版一年级下册数学第一单元20以内的退位减法应用题训练1.杭州某超市有11包宁波汤圆,卖掉了6包,还剩几包?2.金华道情,又称“唱新闻”,主要流行于金华市及周边地区。
金华市某小学有17人参加道情表演,其中男生有6人。
已经来了9人,还有几人没有来?3.芳芳捉了8只蝴蝶,军军捉了15只蝴蝶。
芳芳比军军少捉了多少只蝴蝶?4.一桶油连桶重15千克,吃了一半油以后,连桶重8千克。
原来桶里的油重多少千克?桶重多少千克?5.我们买了15本课外书和13本笔记本。
其中有7本故事书。
其他类的课外书有几本?6.草地上有14只白兔和9只灰兔,过了一会儿,灰兔都跑到树林中去了,白兔跑掉的只数和灰兔同样多,草地上还有多少只兔子?7.手工课上,小朋友们做风车,丽丽.做了16个,芳芳做了9个。
芳芳至少再做多少个,才能超过丽丽?8.树上有13只麻雀,7只喜鹊,麻雀比喜鹊多几只?9.猴哥哥和猴弟弟一起摘桃子,一共摘了16个桃子。
猴弟弟摘了7个,猴哥哥摘了多少个?10.6位小朋友一共要做18只纸船,已经做了9只,他们还要再做多少只纸船?11.把13个苹果放进2个盘子里,其中一个盘子里放8个,另一个盘子里放多少个?12.金鱼缸里有15条红金鱼,6条花金鱼,再买几条花金鱼就和红金鱼同样多?13.妈妈买红扣子18个,白扣子9个,黑扣子4个。
(1)红扣子比白扣子多多少个?(2)黑扣子比白扣子少多少个?14.小红家有16只鸡和8只鸭,公鸡有7只,母鸡有几只?15.每人只能摘12个桃子。
(1)淘气说:“我已经摘了6个,还能再摘几个?”(2)笑笑说:“我还能再摘8个,你猜我已经摘了几个?”16.家中原有苹果13个,吃掉了4个,还剩下多少个苹果?17.小军和小华共做了13个纸船,小华做了6个,小军做多少个?18.图书室原来有16本故事书,借走了8本故事书。
还剩多少本故事书?19.益智兴趣小组有12人,有7副四巧板,如果每人一副四巧板,还差几副?20.小明要写18个大字,他已经写了9个,还要写多少个?21.树上原来有15只小鸟,飞走了8只后,还剩几只?22.益智兴趣小组有12人,有7副四巧板,如果每人一副四巧板,还差几副?答案解析部分1.【答案】11-6=5(包)答:还剩5包。
完整版)20以内退位减法解决问题练习题

完整版)20以内退位减法解决问题练习题姓名:一、1、17-9=81)想加算减:9+8=17所以17-9=82)破十法;先算10-7=3再算3-1=2,所以13-8=52)破十法;先算10-6=4再算4+3=7,所以16-7=9二、1、17比8大(9),8比13小(5)2、比19小6的数(13)比6大7的数是(13+7=20)3、19比6大(13),7比16小(9)4、比13小9的数(4),比9大8的数是(17)5、(11)比18少7,16比(12)多46、15比(6)少9,14比(20)多67、(7)比12少5,13比(9)少4三、1、还有22支铅笔2、还剩5朵花3、二组有7人4、两人一共吃了17颗樱桃5、还剩9台电视机6、男生有10人7、还剩7个香蕉8、男生有10人9、花猫比黑猫多钓了3条鱼10、___还有6道没有做11、母鸡有9只四、1、(1)___比___多踢了9下2)比较三个人踢的数量,问谁踢得最多,谁踢得最少,他们三个一共踢了多少下。
2、(1)布娃娃比叮当猫多6个2)如果小熊的数量变成7个,那么三种玩具一共有多少个。
3、(1)___比___多做了5朵花2)如果___做了3朵花,三个人一共做了多少朵花。
4、(1)___做了7朵花2)如果黄色的花有8朵,___和___一共做了多少朵花。
5、(1)___比___做了7件6、有12只动物参加运动会,其中有2只是老虎。
现在又来了5只动物,那么还有几只动物没有到场?答案是:还有5只动物没有到场。
7、如果每人要做15朵花,小军已经做了6朵花,那么他还需要再做几朵花?答案是:小军还需要再做9朵花。
20以内的退位减法 4500题

15 - 6 =10 - 2 =14 - 8 =12 - 5 =15 - 8 =10 - 5 =14 - 9 =11 - 6 =12 - 8 =13 - 4 =10 - 1 =12 - 3 =13 - 6 =16 - 7 =10 - 4 =14 - 8 =13 - 6 =10 - 1 =14 - 6 =14 - 5 =12 - 8 =12 - 4 =11 - 9 =12 - 7 =16 - 9 =12 - 4 =13 - 5 =14 - 7 =16 - 8 =10 - 7 =11 - 3 =12 - 9 =13 - 5 =16 - 9 =13 - 9 =10 - 8 =13 - 5 =15 - 7 =17 - 8 =12 - 9 =17 - 9 =10 - 3 =15 - 7 =14 - 7 =12 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 7 =10 - 3 =10 - 8 = 15 - 7 =18 - 9 =13 - 4 = 17 - 8 =13 - 9 =11 - 4 =12 - 3 =10 - 9 =14 - 5 =13 - 9 =16 - 9 =10 - 9 = 10 - 4 =11 - 8 =13 - 4 = 10 - 3 =10 - 7 =10 - 6 = 15 - 9 =16 - 9 =12 - 9 = 10 - 9 =12 - 6 =12 - 8 =10 - 3 =11 - 2 =12 - 3 =11 - 7 =13 - 7 =14 - 7 = 17 - 8 =11 - 3 =10 - 7 = 12 - 7 =10 - 2 =11 - 5 = 16 - 8 =15 - 7 =14 - 6 =10 - 6 =12 - 7 =13 - 6 =11 - 4 =12 - 3 =16 - 9 = 11 - 7 =10 - 4 =18 - 9 = 16 - 8 =12 - 4 =11 - 8 =14 - 7 =10 - 2 =17 - 9 =10 - 4 =13 - 7 =13 - 4 =10 - 9 =13 - 5 =16 - 8 =11 - 5 =16 - 9 =10 - 3 =12 - 9 =17 - 9 =10 - 6 =13 - 7 =15 - 7 =12 - 7 =13 - 9 =12 - 9 =13 - 5 =10 - 2 =14 - 6 =12 - 6 =16 - 7 =11 - 7 =14 - 6 =10 - 2 =17 - 9 =11 - 7 =10 - 6 =11 - 6 =10 - 2 =10 - 8 =15 - 9 =13 - 5 =10 - 4 =13 - 6 =11 - 2 =11 - 9 =16 - 9 =13 - 6 =18 - 9 =练习范围:20以内的退位减法 题数:100分秒成绩:11 - 3 =11 - 2 =10 - 3 = 10 - 7 =12 - 8 =15 - 9 = 16 - 8 =11 - 5 =13 - 7 = 14 - 9 =16 - 9 =11 - 2 = 12 - 7 =10 - 1 =13 - 9 = 16 - 7 =13 - 6 =10 - 7 =11 - 7 =10 - 8 =16 - 9 =12 - 3 =15 - 8 =10 - 1 = 11 - 9 =12 - 6 =13 - 7 = 15 - 9 =11 - 9 =14 - 5 = 17 - 9 =12 - 6 =10 - 9 =10 - 5 =13 - 5 =13 - 8 =11 - 4 =14 - 5 =12 - 5 = 13 - 4 =15 - 6 =14 - 8 = 12 - 5 =12 - 3 =14 - 9 = 12 - 8 =17 - 9 =12 - 9 = 12 - 3 =12 - 5 =13 - 8 = 17 - 8 =15 - 8 =12 - 9 =12 - 6 =11 - 5 =10 - 9 =11 - 6 =12 - 5 =10 - 3 =13 - 6 =11 - 5 =11 - 3 =14 - 9 =11 - 2 =12 - 3 =16 - 7 =12 - 7 =17 - 9 =14 - 7 =13 - 9 =16 - 8 =11 - 4 =10 - 8 =14 - 9 =10 - 1 =11 - 2 =13 - 6 =10 - 4 =15 - 6 =12 - 8 =17 - 8 =17 - 9 =11 - 8 =16 - 7 =11 - 3 =11 - 4 =13 - 5 =13 - 6 =13 - 9 =10 - 4 =14 - 9 =10 - 6 =10 - 1 =12 - 4 =13 - 4 =11 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:14 - 5 =11 - 2 =12 - 7 =10 - 6 =17 - 9 =10 - 7 =11 - 9 =18 - 9 =10 - 6 =12 - 3 =14 - 9 =10 - 8 = 11 - 9 =14 - 7 =10 - 1 = 17 - 8 =15 - 8 =13 - 8 = 13 - 5 =14 - 7 =11 - 9 = 12 - 8 =14 - 5 =16 - 9 =10 - 1 =11 - 9 =15 - 9 =11 - 2 =15 - 7 =14 - 6 =12 - 4 =12 - 7 =11 - 7 = 10 - 7 =14 - 8 =18 - 9 = 10 - 5 =15 - 6 =13 - 9 = 12 - 4 =10 - 5 =13 - 5 = 17 - 9 =12 - 8 =12 - 3 = 14 - 7 =10 - 6 =13 - 6 =10 - 2 =14 - 7 =10 - 7 =11 - 6 =13 - 8 =10 - 3 =13 - 7 =13 - 9 =15 - 9 =13 - 5 =14 - 5 =10 - 3 =12 - 7 =14 - 6 =16 - 8 =14 - 9 =15 - 7 =13 - 4 =10 - 6 =15 - 8 =10 - 2 =14 - 8 =10 - 7 =11 - 4 =15 - 6 =13 - 6 =17 - 9 =15 - 7 =11 - 4 =11 - 2 =15 - 8 =11 - 6 =10 - 7 =11 - 2 =11 - 8 =12 - 9 =15 - 7 =13 - 4 =12 - 4 =12 - 8 =16 - 8 =11 - 9 =17 - 9 =12 - 5 =14 - 8 =12 - 6 =13 - 8 =10 - 8 =13 - 6 =练习范围:20以内的退位减法 题数:100分秒成绩:11 - 5 =11 - 6 =11 - 2 = 15 - 7 =17 - 8 =13 - 6 = 12 - 7 =12 - 6 =12 - 4 = 14 - 7 =16 - 7 =11 - 7 = 12 - 9 =15 - 8 =10 - 8 = 11 - 4 =14 - 7 =10 - 5 =11 - 3 =15 - 7 =12 - 7 =12 - 8 =12 - 6 =11 - 9 = 11 - 6 =11 - 3 =12 - 7 =11 - 7 =11 - 4 =12 - 4 =12 - 3 =12 - 5 =10 - 9 = 11 - 8 =14 - 5 =10 - 7 = 11 - 3 =10 - 4 =14 - 9 = 11 - 7 =17 - 8 =10 - 6 = 18 - 9 =14 - 6 =11 - 7 = 10 - 2 =13 - 5 =14 - 7 = 10 - 1 =17 - 9 =10 - 9 = 12 - 4 =16 - 8 =14 - 9 =12 - 5 =15 - 6 =15 - 9 =14 - 8 =11 - 5 =12 - 3 =12 - 7 =11 - 3 =17 - 8 =10 - 2 =11 - 5 =10 - 7 =12 - 4 =11 - 8 =15 - 8 =14 - 7 =10 - 8 =11 - 5 =13 - 7 =16 - 9 =14 - 6 =10 - 7 =10 - 1 =13 - 6 =13 - 9 =14 - 6 =11 - 8 =11 - 9 =13 - 9 =17 - 9 =10 - 9 =16 - 7 =13 - 8 =11 - 2 =10 - 3 =10 - 6 =11 - 6 =11 - 4 =12 - 7 =13 - 6 =13 - 7 =12 - 3 =10 - 1 =练习范围:20以内的退位减法 题数:100分秒成绩:11 - 6 =10 - 2 =18 - 9 = 13 - 6 =10 - 7 =16 - 7 = 10 - 9 =12 - 3 =10 - 5 = 14 - 7 =13 - 4 =14 - 8 = 16 - 9 =15 - 6 =14 - 6 = 10 - 4 =18 - 9 =13 - 6 = 14 - 5 =16 - 7 =10 - 7 =13 - 9 =10 - 8 =10 - 4 =14 - 6 =12 - 8 =15 - 9 = 12 - 4 =17 - 9 =13 - 7 = 11 - 7 =18 - 9 =12 - 7 =14 - 8 =10 - 7 =15 - 8 =15 - 6 =12 - 9 =17 - 9 = 10 - 2 =10 - 1 =11 - 5 = 10 - 7 =17 - 9 =14 - 6 =10 - 4 =11 - 6 =13 - 5 =11 - 3 =12 - 4 =13 - 8 = 10 - 6 =13 - 8 =13 - 4 =12 - 8 =14 - 5 =15 - 6 =10 - 7 =11 - 2 =11 - 8 =15 - 9 =15 - 8 =10 - 1 =12 - 6 =11 - 3 =14 - 6 =16 - 9 =13 - 7 =18 - 9 =17 - 9 =10 - 9 =10 - 6 =14 - 7 =14 - 8 =10 - 8 =12 - 6 =14 - 6 =12 - 5 =14 - 8 =12 - 9 =10 - 1 =13 - 5 =10 - 5 =12 - 7 =10 - 4 =11 - 4 =16 - 8 =15 - 9 =11 - 5 =12 - 7 =12 - 6 =11 - 7 =10 - 9 =13 - 8 =12 - 4 =12 - 3 =13 - 9 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 1 =17 - 9 =12 - 3 = 15 - 7 =12 - 5 =14 - 9 = 11 - 8 =14 - 7 =13 - 9 = 13 - 6 =10 - 6 =16 - 7 = 10 - 4 =14 - 9 =11 - 3 = 16 - 7 =10 - 3 =17 - 9 = 12 - 9 =13 - 6 =15 - 7 = 17 - 8 =10 - 5 =10 - 2 = 14 - 8 =18 - 9 =13 - 5 = 11 - 6 =12 - 4 =14 - 8 =10 - 6 =10 - 4 =14 - 7 =11 - 4 =12 - 5 =11 - 3 = 10 - 1 =11 - 6 =12 - 6 = 10 - 6 =13 - 9 =10 - 9 = 10 - 1 =11 - 7 =15 - 7 = 14 - 7 =10 - 4 =10 - 3 =11 - 6 =14 - 7 =10 - 6 =12 - 3 =14 - 7 =15 - 7 =12 - 7 =18 - 9 =13 - 8 =11 - 9 =12 - 3 =10 - 9 =10 - 3 =14 - 7 =11 - 3 =15 - 6 =11 - 6 =10 - 9 =10 - 3 =16 - 9 =12 - 4 =10 - 5 =11 - 7 =16 - 7 =17 - 8 =15 - 6 =14 - 6 =14 - 9 =12 - 9 =14 - 5 =13 - 9 =12 - 3 =10 - 5 =10 - 1 =10 - 6 =10 - 9 =12 - 4 =16 - 9 =10 - 7 =15 - 9 =12 - 3 =14 - 6 =11 - 2 =11 - 8 =11 - 7 =10 - 4 =10 - 7 =11 - 8 =16 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:12 - 9 =16 - 8 =12 - 6 =13 - 5 =16 - 9 =14 - 9 = 16 - 7 =10 - 6 =10 - 7 =10 - 9 =14 - 9 =10 - 4 =11 - 3 =15 - 8 =10 - 7 = 14 - 5 =12 - 9 =11 - 8 = 11 - 5 =13 - 7 =14 - 6 = 11 - 3 =11 - 2 =13 - 4 = 15 - 8 =10 - 7 =13 - 6 = 14 - 8 =10 - 2 =12 - 6 = 17 - 8 =14 - 5 =10 - 9 = 12 - 8 =11 - 4 =14 - 9 = 10 - 7 =11 - 6 =13 - 4 = 15 - 8 =11 - 5 =10 - 8 = 11 - 2 =12 - 3 =10 - 3 =14 - 9 =10 - 2 =17 - 9 =15 - 6 =11 - 6 =17 - 8 = 17 - 9 =13 - 6 =13 - 8 =12 - 7 =11 - 6 =11 - 8 =12 - 3 =11 - 7 =17 - 8 =10 - 7 =10 - 4 =14 - 7 =11 - 2 =12 - 8 =17 - 9 =15 - 7 =16 - 9 =18 - 9 =13 - 5 =14 - 8 =15 - 7 =14 - 9 =10 - 5 =11 - 5 =17 - 8 =10 - 6 =13 - 7 =12 - 4 =14 - 6 =17 - 8 =10 - 9 =12 - 9 =12 - 4 =11 - 3 =10 - 9 =14 - 6 =15 - 6 =11 - 4 =12 - 3 =15 - 9 =14 - 9 =12 - 5 =11 - 3 =14 - 8 =13 - 4 =12 - 6 =练习范围:20以内的退位减法 题数:100分秒成绩:17 - 9 =15 - 8 =13 - 7 = 12 - 9 =17 - 8 =12 - 6 = 16 - 9 =15 - 9 =18 - 9 = 12 - 8 =10 - 1 =16 - 7 = 15 - 6 =14 - 6 =13 - 8 = 10 - 1 =17 - 9 =10 - 6 = 13 - 9 =10 - 3 =11 - 2 = 18 - 9 =16 - 8 =17 - 8 = 13 - 4 =13 - 5 =18 - 9 = 10 - 7 =14 - 8 =12 - 6 = 10 - 2 =11 - 5 =13 - 5 = 13 - 4 =12 - 4 =13 - 7 = 12 - 5 =15 - 6 =10 - 6 = 10 - 9 =11 - 3 =13 - 9 = 12 - 6 =15 - 8 =11 - 4 = 12 - 4 =17 - 8 =11 - 2 = 11 - 9 =14 - 6 =12 - 6 = 13 - 5 =12 - 9 =15 - 8 =10 - 9 =15 - 6 =15 - 7 =10 - 6 =12 - 4 =13 - 5 =16 - 8 =13 - 6 =17 - 8 =11 - 5 =16 - 8 =11 - 8 =12 - 6 =13 - 5 =13 - 8 =11 - 5 =13 - 7 =14 - 9 =16 - 9 =10 - 7 =16 - 7 =10 - 8 =11 - 4 =14 - 5 =10 - 6 =17 - 9 =10 - 3 =10 - 7 =11 - 5 =12 - 3 =10 - 5 =10 - 4 =10 - 3 =14 - 7 =11 - 4 =17 - 8 =12 - 5 =16 - 7 =14 - 9 =12 - 4 =13 - 6 =11 - 3 =13 - 5 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 4 =10 - 1 =14 - 8 = 17 - 9 =17 - 8 =13 - 9 = 12 - 5 =10 - 3 =13 - 7 = 11 - 3 =14 - 5 =10 - 7 = 14 - 6 =11 - 8 =11 - 9 = 13 - 8 =16 - 9 =12 - 4 = 16 - 7 =13 - 4 =10 - 7 = 10 - 5 =12 - 5 =14 - 6 = 18 - 9 =11 - 9 =10 - 2 = 12 - 7 =16 - 9 =11 - 7 = 11 - 2 =17 - 9 =10 - 2 = 14 - 7 =11 - 9 =11 - 6 = 12 - 8 =10 - 6 =11 - 7 = 14 - 6 =15 - 6 =14 - 5 =13 - 5 =12 - 5 =12 - 8 =14 - 8 =16 - 7 =14 - 9 = 12 - 5 =15 - 9 =17 - 8 = 11 - 8 =13 - 7 =10 - 7 =15 - 9 =15 - 7 =10 - 4 =11 - 2 =10 - 5 =13 - 6 =14 - 9 =11 - 7 =14 - 6 =13 - 9 =12 - 5 =12 - 8 =10 - 6 =16 - 7 =10 - 2 =13 - 8 =11 - 9 =11 - 5 =16 - 7 =17 - 9 =12 - 6 =12 - 5 =12 - 8 =13 - 6 =11 - 5 =11 - 3 =10 - 3 =12 - 4 =10 - 9 =11 - 4 =16 - 7 =15 - 8 =10 - 3 =12 - 9 =12 - 4 =10 - 2 =11 - 6 =12 - 3 =13 - 9 =10 - 3 =10 - 9 =11 - 9 =12 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:14 - 6 =10 - 3 =14 - 7 =15 - 8 =10 - 1 =10 - 8 = 11 - 7 =11 - 3 =16 - 9 = 13 - 9 =15 - 8 =11 - 6 =11 - 9 =12 - 7 =15 - 8 =12 - 9 =10 - 1 =14 - 7 = 15 - 9 =10 - 3 =13 - 6 = 12 - 7 =13 - 4 =14 - 5 = 12 - 9 =18 - 9 =17 - 9 = 14 - 7 =17 - 8 =10 - 6 = 13 - 9 =12 - 4 =12 - 8 = 10 - 8 =13 - 9 =10 - 3 = 10 - 1 =12 - 8 =15 - 8 = 10 - 8 =13 - 5 =14 - 6 =14 - 8 =14 - 9 =17 - 9 =15 - 6 =11 - 9 =12 - 5 = 14 - 7 =13 - 4 =13 - 8 = 16 - 8 =16 - 8 =12 - 5 =10 - 6 =12 - 6 =12 - 9 =12 - 4 =17 - 9 =10 - 1 =14 - 9 =13 - 6 =15 - 6 =17 - 9 =12 - 7 =11 - 7 =15 - 7 =10 - 4 =13 - 4 =14 - 9 =10 - 3 =14 - 6 =10 - 1 =10 - 4 =11 - 7 =10 - 2 =15 - 7 =11 - 6 =12 - 3 =10 - 5 =15 - 8 =11 - 5 =13 - 7 =13 - 9 =13 - 6 =14 - 5 =14 - 7 =16 - 7 =10 - 7 =10 - 1 =11 - 2 =18 - 9 =14 - 7 =14 - 8 =13 - 6 =10 - 3 =12 - 8 =练习范围:20以内的退位减法 题数:100分秒成绩:14 - 8 =10 - 3 =15 - 7 = 14 - 9 =11 - 7 =15 - 8 = 18 - 9 =14 - 9 =14 - 8 = 16 - 7 =13 - 6 =15 - 8 = 11 - 7 =14 - 8 =10 - 7 = 17 - 8 =11 - 3 =14 - 6 = 15 - 9 =12 - 9 =10 - 7 = 12 - 3 =13 - 8 =10 - 8 = 11 - 3 =11 - 9 =11 - 7 = 15 - 7 =13 - 5 =17 - 8 = 15 - 8 =15 - 9 =18 - 9 =10 - 1 =13 - 6 =10 - 9 =11 - 6 =11 - 8 =10 - 4 =12 - 8 =16 - 9 =15 - 6 =13 - 8 =14 - 8 =18 - 9 = 11 - 4 =14 - 5 =10 - 3 = 13 - 8 =14 - 9 =13 - 7 = 15 - 9 =13 - 8 =11 - 7 =13 - 4 =12 - 9 =17 - 8 =13 - 7 =10 - 4 =11 - 5 =12 - 6 =16 - 9 =14 - 6 =16 - 7 =17 - 9 =10 - 5 =14 - 7 =14 - 9 =11 - 8 =16 - 8 =12 - 8 =12 - 5 =13 - 5 =15 - 9 =17 - 9 =14 - 8 =10 - 9 =15 - 8 =18 - 9 =10 - 8 =11 - 7 =10 - 6 =13 - 6 =15 - 9 =11 - 4 =10 - 7 =10 - 9 =13 - 9 =10 - 3 =11 - 8 =15 - 6 =12 - 6 =10 - 1 =11 - 2 =11 - 6 =11 - 8 =10 - 3 =练习范围:20以内的退位减法 题数:100分秒成绩:11 - 3 =16 - 7 =15 - 7 = 11 - 5 =15 - 6 =10 - 9 = 11 - 6 =14 - 6 =17 - 9 = 13 - 9 =16 - 7 =15 - 7 = 12 - 3 =11 - 5 =10 - 8 = 11 - 2 =13 - 9 =15 - 6 = 11 - 9 =11 - 2 =14 - 7 =10 - 8 =12 - 4 =17 - 9 =11 - 6 =15 - 8 =14 - 9 = 15 - 9 =12 - 5 =12 - 7 = 12 - 8 =14 - 9 =12 - 6 = 10 - 2 =13 - 5 =13 - 9 = 12 - 8 =10 - 2 =15 - 7 = 14 - 5 =15 - 6 =11 - 8 = 12 - 7 =10 - 7 =14 - 8 = 14 - 9 =16 - 7 =10 - 8 = 11 - 3 =12 - 8 =12 - 7 = 16 - 9 =14 - 5 =12 - 9 =10 - 1 =13 - 5 =11 - 6 =12 - 5 =12 - 8 =13 - 9 =10 - 8 =10 - 9 =14 - 7 =15 - 9 =12 - 8 =14 - 8 =11 - 3 =16 - 7 =11 - 5 =10 - 5 =12 - 7 =13 - 7 =15 - 8 =10 - 8 =14 - 6 =12 - 4 =10 - 5 =11 - 9 =17 - 9 =15 - 9 =12 - 8 =10 - 5 =11 - 2 =15 - 8 =10 - 3 =11 - 7 =12 - 3 =13 - 4 =17 - 9 =16 - 8 =10 - 4 =10 - 3 =14 - 9 =12 - 6 =14 - 7 =12 - 4 =13 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:15 - 6 =11 - 7 =10 - 2 =10 - 9 =10 - 4 =10 - 3 =11 - 5 =17 - 9 =11 - 3 = 13 - 8 =17 - 8 =10 - 7 = 11 - 4 =15 - 9 =12 - 4 = 10 - 8 =12 - 6 =14 - 6 =10 - 9 =15 - 7 =11 - 4 =11 - 9 =10 - 4 =12 - 6 = 13 - 4 =15 - 9 =11 - 4 = 18 - 9 =11 - 7 =10 - 7 = 13 - 6 =10 - 6 =11 - 8 = 17 - 9 =12 - 7 =15 - 9 = 11 - 6 =16 - 8 =10 - 5 = 10 - 9 =16 - 9 =11 - 2 = 10 - 3 =10 - 6 =13 - 8 = 14 - 6 =13 - 6 =16 - 7 = 16 - 8 =18 - 9 =11 - 3 = 12 - 7 =12 - 7 =12 - 6 =13 - 8 =12 - 8 =11 - 7 =12 - 4 =14 - 7 =11 - 2 =11 - 3 =14 - 5 =15 - 6 =17 - 9 =14 - 8 =10 - 6 =16 - 9 =10 - 2 =10 - 7 =17 - 9 =12 - 5 =11 - 9 =12 - 4 =10 - 2 =14 - 9 =16 - 7 =11 - 6 =10 - 5 =16 - 8 =10 - 3 =11 - 8 =16 - 7 =10 - 9 =12 - 4 =13 - 4 =11 - 4 =12 - 3 =15 - 9 =11 - 8 =10 - 2 =12 - 9 =14 - 6 =11 - 9 =10 - 4 =11 - 2 =14 - 6 =13 - 9 =练习范围:20以内的退位减法 题数:100分秒成绩:15 - 8 =11 - 2 =15 - 9 = 12 - 5 =12 - 4 =10 - 5 = 10 - 3 =10 - 8 =10 - 7 = 16 - 9 =17 - 9 =14 - 5 = 11 - 6 =11 - 7 =12 - 5 = 15 - 8 =15 - 9 =12 - 6 =10 - 9 =16 - 9 =15 - 7 =11 - 8 =10 - 5 =14 - 5 = 11 - 4 =18 - 9 =11 - 3 = 15 - 7 =10 - 9 =13 - 7 = 15 - 6 =13 - 5 =11 - 7 = 14 - 5 =15 - 8 =10 - 2 = 12 - 9 =10 - 8 =17 - 8 = 15 - 6 =12 - 9 =11 - 9 = 10 - 1 =15 - 7 =10 - 7 = 14 - 9 =10 - 2 =11 - 5 = 10 - 8 =10 - 6 =14 - 7 = 12 - 3 =11 - 9 =10 - 1 =10 - 9 =10 - 7 =13 - 5 =18 - 9 =14 - 5 =15 - 7 =13 - 6 =16 - 8 =10 - 3 =16 - 7 =15 - 8 =13 - 8 =11 - 4 =13 - 7 =12 - 5 =10 - 6 =12 - 9 =11 - 3 =10 - 9 =12 - 8 =15 - 6 =11 - 3 =15 - 9 =12 - 9 =14 - 9 =11 - 3 =16 - 9 =12 - 5 =15 - 7 =12 - 3 =12 - 8 =10 - 4 =12 - 9 =14 - 7 =13 - 4 =11 - 2 =11 - 7 =12 - 5 =10 - 6 =15 - 7 =12 - 8 =12 - 4 =10 - 3 =练习范围:20以内的退位减法 题数:100分秒成绩:13 - 9 =12 - 4 =11 - 6 = 12 - 9 =12 - 7 =11 - 8 = 14 - 6 =12 - 8 =12 - 4 = 12 - 6 =16 - 7 =13 - 6 = 10 - 8 =17 - 8 =15 - 8 = 15 - 9 =11 - 3 =12 - 3 = 13 - 8 =11 - 8 =11 - 7 = 10 - 8 =12 - 4 =14 - 7 = 12 - 3 =14 - 9 =12 - 4 = 15 - 6 =12 - 5 =10 - 5 = 11 - 2 =15 - 9 =11 - 4 = 14 - 5 =15 - 6 =12 - 4 =13 - 4 =11 - 2 =10 - 5 =14 - 9 =17 - 9 =13 - 6 = 14 - 5 =17 - 8 =11 - 8 =13 - 6 =11 - 5 =14 - 5 =14 - 8 =14 - 7 =11 - 6 = 10 - 2 =14 - 8 =14 - 6 =14 - 5 =18 - 9 =13 - 9 =10 - 2 =16 - 7 =11 - 4 =14 - 7 =10 - 4 =11 - 6 =11 - 5 =14 - 7 =12 - 4 =10 - 1 =16 - 8 =10 - 6 =10 - 9 =10 - 8 =10 - 1 =15 - 8 =10 - 6 =12 - 8 =12 - 5 =15 - 8 =12 - 6 =13 - 5 =16 - 9 =10 - 8 =10 - 3 =12 - 8 =13 - 8 =14 - 9 =12 - 6 =11 - 7 =10 - 8 =11 - 5 =12 - 9 =16 - 7 =10 - 8 =11 - 2 =12 - 5 =10 - 6 =10 - 3 =12 - 3 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 8 =11 - 9 =11 - 3 = 15 - 7 =11 - 8 =10 - 1 = 15 - 6 =15 - 9 =10 - 9 = 15 - 7 =11 - 3 =16 - 9 = 13 - 9 =13 - 4 =17 - 9 = 12 - 7 =10 - 7 =12 - 5 = 15 - 8 =12 - 3 =11 - 2 =12 - 4 =12 - 7 =10 - 1 =13 - 4 =13 - 8 =10 - 5 =11 - 5 =16 - 8 =15 - 6 =12 - 8 =14 - 9 =13 - 7 = 10 - 2 =10 - 5 =11 - 2 = 17 - 9 =13 - 4 =10 - 7 = 15 - 6 =11 - 5 =14 - 9 = 15 - 7 =17 - 8 =12 - 3 = 12 - 5 =11 - 5 =13 - 5 = 15 - 7 =15 - 6 =12 - 9 = 11 - 2 =15 - 8 =16 - 7 =12 - 9 =11 - 4 =17 - 9 =14 - 8 =16 - 9 =12 - 5 =14 - 7 =11 - 6 =10 - 1 =10 - 6 =13 - 8 =12 - 4 =15 - 9 =11 - 9 =10 - 9 =11 - 3 =15 - 7 =18 - 9 =13 - 5 =14 - 5 =10 - 3 =13 - 4 =14 - 8 =10 - 5 =12 - 4 =13 - 6 =10 - 9 =11 - 8 =10 - 8 =12 - 7 =11 - 2 =14 - 6 =13 - 5 =13 - 6 =14 - 9 =12 - 5 =10 - 6 =10 - 1 =12 - 3 =17 - 8 =12 - 8 =12 - 4 =14 - 5 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 8 =13 - 4 =13 - 7 = 13 - 8 =15 - 6 =12 - 6 = 10 - 2 =14 - 5 =10 - 9 = 13 - 8 =10 - 1 =11 - 9 = 10 - 7 =11 - 5 =13 - 6 = 10 - 1 =16 - 8 =12 - 3 = 18 - 9 =10 - 5 =15 - 9 =11 - 3 =14 - 9 =12 - 5 =12 - 3 =13 - 7 =14 - 5 = 16 - 8 =11 - 5 =11 - 8 =10 - 8 =10 - 4 =12 - 7 =11 - 6 =15 - 6 =13 - 7 = 11 - 3 =13 - 5 =12 - 7 = 13 - 9 =11 - 5 =12 - 8 = 13 - 5 =10 - 7 =13 - 4 = 13 - 7 =11 - 6 =10 - 4 = 13 - 4 =12 - 6 =14 - 5 = 10 - 3 =11 - 8 =12 - 8 =13 - 7 =10 - 6 =13 - 8 =17 - 8 =10 - 3 =14 - 5 =12 - 9 =16 - 9 =11 - 6 =18 - 9 =14 - 8 =15 - 7 =10 - 7 =11 - 4 =11 - 3 =10 - 8 =11 - 5 =14 - 6 =13 - 5 =15 - 7 =14 - 8 =10 - 1 =16 - 7 =15 - 8 =12 - 5 =12 - 6 =10 - 6 =13 - 4 =16 - 7 =15 - 9 =10 - 2 =13 - 4 =16 - 9 =10 - 1 =14 - 6 =15 - 6 =12 - 7 =11 - 3 =15 - 9 =11 - 4 =10 - 9 =13 - 4 =14 - 5 =练习范围:20以内的退位减法 题数:100分秒成绩:15 - 8 =16 - 8 =10 - 2 = 10 - 8 =10 - 9 =14 - 7 = 10 - 5 =10 - 7 =11 - 7 = 16 - 7 =13 - 5 =10 - 4 = 11 - 3 =11 - 9 =16 - 8 = 14 - 9 =13 - 4 =10 - 7 = 14 - 7 =15 - 8 =13 - 4 = 10 - 2 =10 - 1 =16 - 8 =10 - 9 =13 - 9 =11 - 6 =11 - 4 =15 - 7 =14 - 9 = 10 - 5 =12 - 7 =14 - 5 = 16 - 9 =13 - 9 =10 - 7 = 13 - 4 =10 - 9 =10 - 8 = 11 - 2 =15 - 9 =12 - 6 = 15 - 6 =13 - 6 =11 - 2 = 15 - 9 =10 - 1 =10 - 9 = 13 - 9 =12 - 4 =11 - 6 = 17 - 9 =15 - 9 =11 - 9 =11 - 7 =11 - 3 =12 - 7 =15 - 6 =10 - 5 =11 - 5 =16 - 8 =14 - 8 =13 - 7 =10 - 1 =10 - 9 =12 - 4 =10 - 8 =14 - 8 =13 - 4 =12 - 9 =10 - 3 =13 - 6 =10 - 6 =17 - 8 =16 - 8 =14 - 6 =16 - 9 =13 - 5 =14 - 9 =16 - 8 =14 - 6 =14 - 5 =12 - 5 =11 - 3 =15 - 8 =16 - 9 =13 - 7 =13 - 4 =12 - 9 =12 - 4 =14 - 7 =12 - 5 =14 - 6 =15 - 7 =14 - 5 =11 - 4 =18 - 9 =练习范围:20以内的退位减法 题数:100分秒成绩:12 - 3 =14 - 8 =10 - 7 = 12 - 4 =13 - 5 =10 - 4 = 16 - 9 =11 - 6 =12 - 5 = 10 - 5 =18 - 9 =16 - 7 =10 - 2 =10 - 3 =14 - 7 =11 - 6 =13 - 9 =11 - 4 = 10 - 7 =13 - 6 =10 - 1 = 12 - 4 =11 - 6 =10 - 2 = 12 - 6 =11 - 2 =14 - 5 = 11 - 8 =11 - 6 =15 - 8 = 14 - 7 =14 - 6 =10 - 7 = 12 - 9 =10 - 2 =13 - 4 = 14 - 7 =12 - 5 =14 - 6 = 12 - 3 =16 - 7 =10 - 2 = 14 - 5 =11 - 4 =17 - 9 = 18 - 9 =10 - 3 =13 - 8 =12 - 8 =12 - 4 =10 - 8 =13 - 7 =13 - 5 =12 - 6 =13 - 9 =16 - 9 =14 - 7 =12 - 3 =17 - 8 =10 - 5 =11 - 2 =13 - 4 =10 - 9 =11 - 7 =13 - 6 =15 - 7 =11 - 8 =14 - 7 =16 - 7 =17 - 9 =10 - 4 =15 - 7 =11 - 7 =10 - 3 =14 - 7 =11 - 9 =12 - 4 =11 - 5 =15 - 7 =11 - 6 =12 - 3 =12 - 4 =10 - 4 =12 - 5 =11 - 9 =11 - 5 =10 - 6 =13 - 4 =18 - 9 =10 - 5 =11 - 3 =10 - 2 =14 - 9 =13 - 6 =12 - 9 =11 - 9 =13 - 8 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 2 =11 - 2 =11 - 6 = 10 - 8 =13 - 7 =17 - 9 = 12 - 8 =11 - 5 =12 - 9 = 14 - 5 =13 - 7 =11 - 3 =10 - 8 =14 - 6 =15 - 7 =11 - 7 =10 - 3 =15 - 8 =12 - 3 =16 - 8 =11 - 5 = 14 - 6 =14 - 7 =16 - 8 = 13 - 8 =10 - 1 =12 - 7 = 11 - 6 =11 - 9 =10 - 9 =10 - 1 =11 - 6 =18 - 9 =11 - 8 =13 - 4 =17 - 9 = 11 - 6 =12 - 5 =14 - 9 = 10 - 7 =15 - 8 =10 - 6 =15 - 9 =11 - 7 =15 - 8 =16 - 7 =10 - 9 =12 - 4 = 15 - 6 =14 - 8 =11 - 6 = 11 - 4 =12 - 7 =10 - 7 =13 - 9 =13 - 4 =15 - 7 =12 - 7 =14 - 6 =10 - 5 =12 - 5 =15 - 9 =11 - 8 =15 - 6 =11 - 4 =11 - 3 =11 - 9 =10 - 3 =13 - 8 =14 - 8 =15 - 9 =11 - 3 =13 - 5 =14 - 9 =12 - 6 =16 - 9 =16 - 7 =12 - 8 =11 - 4 =17 - 8 =14 - 8 =10 - 4 =12 - 3 =13 - 5 =11 - 6 =15 - 7 =14 - 5 =15 - 8 =16 - 7 =15 - 6 =17 - 9 =10 - 2 =13 - 4 =10 - 9 =10 - 6 =13 - 5 =14 - 8 =练习范围:20以内的退位减法 题数:100分秒成绩:13 - 4 =16 - 8 =10 - 1 = 15 - 6 =11 - 6 =11 - 8 = 12 - 9 =16 - 8 =12 - 4 = 14 - 9 =17 - 8 =15 - 8 = 14 - 6 =12 - 8 =10 - 4 = 13 - 8 =11 - 3 =11 - 6 = 11 - 5 =15 - 7 =10 - 8 = 14 - 8 =10 - 2 =15 - 7 = 13 - 7 =15 - 9 =10 - 6 = 12 - 8 =14 - 7 =10 - 2 =16 - 9 =14 - 5 =13 - 4 =17 - 8 =10 - 9 =10 - 1 = 17 - 9 =12 - 9 =10 - 5 = 13 - 5 =13 - 8 =16 - 8 = 12 - 3 =13 - 7 =14 - 7 = 18 - 9 =13 - 6 =12 - 9 = 11 - 4 =10 - 3 =11 - 2 = 11 - 7 =17 - 8 =13 - 5 =11 - 3 =16 - 9 =15 - 7 =14 - 5 =10 - 6 =16 - 7 =13 - 7 =11 - 7 =12 - 6 =12 - 4 =10 - 1 =10 - 5 =15 - 9 =15 - 8 =11 - 2 =10 - 8 =13 - 9 =10 - 5 =14 - 7 =13 - 4 =11 - 5 =12 - 4 =16 - 8 =10 - 7 =13 - 8 =14 - 9 =18 - 9 =13 - 6 =12 - 6 =11 - 6 =11 - 8 =10 - 1 =11 - 9 =10 - 8 =18 - 9 =16 - 8 =11 - 7 =10 - 2 =12 - 6 =11 - 5 =11 - 2 =12 - 7 =14 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:11 - 4 =12 - 6 =13 - 6 = 13 - 9 =14 - 8 =10 - 5 = 12 - 4 =11 - 7 =12 - 9 = 16 - 8 =18 - 9 =12 - 5 = 10 - 3 =13 - 7 =10 - 1 = 17 - 9 =12 - 7 =16 - 8 =10 - 7 =12 - 4 =12 - 9 =11 - 4 =10 - 1 =15 - 6 =12 - 6 =10 - 9 =12 - 7 =11 - 7 =13 - 7 =10 - 2 =12 - 3 =10 - 5 =12 - 5 =13 - 5 =10 - 7 =10 - 3 =11 - 5 =13 - 9 =11 - 6 =12 - 7 =14 - 8 =11 - 3 = 17 - 9 =15 - 8 =11 - 5 =14 - 9 =12 - 8 =13 - 4 =15 - 6 =12 - 9 =14 - 7 = 14 - 6 =11 - 3 =17 - 9 =10 - 1 =10 - 3 =15 - 9 =12 - 7 =14 - 8 =12 - 3 =10 - 7 =11 - 9 =16 - 9 =10 - 5 =11 - 6 =10 - 9 =11 - 7 =15 - 8 =11 - 8 =12 - 5 =12 - 4 =11 - 2 =11 - 6 =15 - 7 =12 - 9 =17 - 9 =10 - 7 =14 - 5 =13 - 6 =18 - 9 =14 - 6 =12 - 6 =13 - 9 =13 - 7 =14 - 5 =15 - 8 =15 - 7 =13 - 7 =11 - 6 =14 - 9 =12 - 9 =11 - 7 =18 - 9 =17 - 8 =12 - 4 =13 - 5 =12 - 6 =练习范围:20以内的退位减法 题数:100分秒成绩:13 - 4 =10 - 9 =13 - 6 =11 - 6 =15 - 7 =11 - 5 =12 - 6 =11 - 7 =10 - 1 = 10 - 5 =12 - 4 =14 - 5 = 15 - 7 =16 - 8 =10 - 6 = 10 - 4 =13 - 5 =16 - 7 = 10 - 2 =13 - 9 =15 - 6 = 13 - 8 =12 - 9 =11 - 7 =10 - 8 =11 - 4 =16 - 8 =11 - 2 =11 - 5 =13 - 5 = 17 - 8 =10 - 4 =12 - 8 =11 - 6 =13 - 9 =15 - 8 =12 - 4 =13 - 6 =12 - 3 =13 - 8 =12 - 8 =14 - 7 = 10 - 6 =12 - 6 =11 - 6 = 15 - 6 =16 - 7 =11 - 4 = 18 - 9 =11 - 2 =14 - 7 = 10 - 5 =16 - 8 =11 - 2 =11 - 9 =11 - 6 =10 - 5 =14 - 9 =10 - 2 =11 - 7 =14 - 5 =15 - 6 =11 - 8 =17 - 9 =11 - 5 =12 - 7 =11 - 8 =10 - 7 =15 - 9 =12 - 3 =13 - 7 =12 - 5 =17 - 8 =10 - 3 =13 - 4 =14 - 6 =10 - 8 =18 - 9 =12 - 7 =10 - 4 =13 - 6 =14 - 7 =16 - 9 =11 - 3 =12 - 8 =18 - 9 =10 - 4 =15 - 9 =12 - 4 =13 - 4 =15 - 6 =17 - 9 =13 - 5 =13 - 4 =11 - 5 =15 - 9 =15 - 7 =练习范围:20以内的退位减法 题数:100分秒成绩:14 - 7 =12 - 7 =15 - 9 = 13 - 9 =12 - 9 =14 - 7 = 10 - 3 =12 - 5 =15 - 9 =10 - 1 =13 - 8 =14 - 7 =11 - 4 =12 - 9 =10 - 9 = 15 - 8 =18 - 9 =10 - 3 =12 - 8 =11 - 3 =13 - 7 =13 - 4 =10 - 3 =12 - 3 = 11 - 4 =12 - 6 =10 - 6 = 15 - 8 =15 - 6 =14 - 8 = 10 - 9 =10 - 4 =10 - 8 = 10 - 7 =12 - 4 =15 - 7 = 13 - 7 =10 - 7 =15 - 6 = 12 - 7 =12 - 3 =12 - 5 = 11 - 3 =13 - 9 =12 - 4 =10 - 1 =15 - 9 =16 - 7 =11 - 2 =11 - 9 =10 - 4 = 13 - 5 =11 - 4 =15 - 8 =16 - 7 =11 - 7 =11 - 5 =15 - 9 =14 - 6 =15 - 6 =15 - 7 =13 - 8 =10 - 1 =14 - 9 =12 - 9 =13 - 7 =11 - 9 =14 - 8 =11 - 3 =13 - 4 =10 - 5 =12 - 3 =10 - 2 =14 - 6 =12 - 8 =13 - 9 =15 - 7 =12 - 4 =15 - 6 =17 - 9 =14 - 9 =10 - 3 =13 - 4 =11 - 2 =16 - 9 =14 - 7 =10 - 9 =10 - 3 =12 - 9 =10 - 1 =17 - 9 =11 - 6 =12 - 7 =12 - 3 =16 - 8 =13 - 4 =12 - 8 =练习范围:20以内的退位减法 题数:100分秒成绩:10 - 6 =10 - 8 =11 - 2 =13 - 8 =13 - 6 =13 - 7 =14 - 9 =11 - 9 =13 - 4 = 13 - 9 =14 - 5 =10 - 9 = 13 - 6 =14 - 9 =10 - 2 = 18 - 9 =11 - 8 =10 - 1 = 14 - 9 =16 - 9 =17 - 8 = 14 - 5 =13 - 9 =10 - 2 = 13 - 7 =11 - 8 =10 - 9 = 12 - 6 =12 - 4 =12 - 7 = 11 - 8 =10 - 2 =12 - 3 = 15 - 6 =17 - 9 =10 - 6 = 12 - 5 =10 - 9 =11 - 5 = 16 - 8 =10 - 6 =16 - 9 = 10 - 7 =12 - 9 =10 - 3 = 10 - 4 =18 - 9 =10 - 7 = 12 - 3 =17 - 9 =10 - 9 = 16 - 8 =。
- 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)。
班级:姓名:
1、从车场开走9辆汽车,还剩5辆,车场原来有多少汽车?
答:
2、从车场开走8辆大汽车,又开走同样多的小汽车,两次开走多少辆汽车?
答:
3、学校体育室有8个足球,又买来7个,现在有多少个?
答:
4、学雷锋小组上午修了7张椅,下午修了12张,一天修了多少张椅?
答:
5、明明上午算了5道数学题,下午算了10道,上午比下午多算多少道题?
答:
6、图书室里有10个女同学,有8个男同学,男同学比女同学少多少个?
答:
7、动物园里有大猴8只,有小猴10只,小猴比大猴多多少只?
答:
8、学校有6个足球,10个篮球,足球比篮球少多少个?
答:
9、花园里有兰花6盆,菊花8盆,兰花再种多少盆就和菊花同样多?
答:
10、妈妈买红扣子8个,白扣子6个,黑扣子4个。
答:
(1)红扣子比白扣子多多少个?
答:
(2)黑扣子比白扣子少多少个?
答:
9+2=
9+4= 15-7= 9+2=9+4=
11-2=
13-9= 15-8= 11-2=13-9=
11-9=
13-4= 9+7= 11-9=13-4= 8+3= 8+5= 16-9= 8+3= 8+5= 11-3= 13-5= 16-7= 11-3= 13-5= 11-8= 13-8= 8+8= 11-8= 13-8= 7+4= 7+6= 16-8= 7+4= 7+6= 11-7= 13-6= 9+8= 11-7= 13-6= 11-4= 13-7= 17-9= 11-4= 13-7= 6+5= 9+5= 17-8= 6+5= 9+5= 11-6= 14-9= 9+9= 11-6= 14-9= 11-5= 14-5= 18-9= 11-5= 14-5= 9+3= 8+6= 16-9= 9+3= 8+6= 12-9= 14-8= 16-7= 12-9= 14-8= 12-3= 14-6= 8+8= 12-3= 14-6= 8+4= 14-7= 16-8= 8+4= 14-7= 12-8= 7+7= 9+8= 12-8= 7+7= 12-4= 9+6= 17-9= 12-4= 9+6= 7+5= 15-9= 17-8= 7+5= 15-9= 12-5= 15-8= 9+9= 12-5= 15-8= 12-7= 8+7= 18-9= 12-7= 8+7=。