30道脱式简算
六年级简便运算

脱式计算,能简算的简算(1)3-712-512(2)57×38+58×57(3)815×516+527÷109(4)18×(49+56)(5)23×7+23×5(6)(16-112)×(24-45)(7)(57×47+47)÷47(8)15÷[(23+15)×113](9)2518×169+257×169+169(10))7321495(63-+⨯(11)(32×41+17)÷125(12)(25+43)÷41+41(13)(41125-)65÷(14)5912512795÷+⨯(15)65524532-⨯+(16))7321495(63-+⨯(17)2316]43)3121(85[÷⨯+-(18)(21×73+74×21)×41(19)(99+109)÷9 (20)54×65÷85(21)1514÷[(54+32)×1110](22)(65+54)×30(23) 31+3÷21(24) 65×56-109÷59(25)4-115-117(26)81×58+81×41+81(27)54×74×45-21(28) 54×65+52÷53(29)54÷[(85-21)÷85](30)235 - 135÷18(31)35×153 – 0.6×53(32)(45 +14 )÷73 +710(33)10 - 719 - 1219 + 119(34)25×13 ÷52 ×310(35)13.09-8.12-4.88(36)12×103-4500÷75(37)18 ×[12 ÷(35 ×109)](38)(215 +311)×15×11 (39) 37.5+19.5÷2.5×4 (40)252825×4(41)0.4×53+25%×52(42) 713×511+513÷411(43) (92+272)×27(44)(51+92)×5×9(45)3.6×0.76+3.6×24%(46)(56 - 34 )÷(314 + 27)(47)(56 - 34 )÷ 112(48)[ 12 - (34 - 45 )]÷710(49) 17×916(50)(34 +58 )×32(51) 15 + 29 × 310(52)44-72×512(53)85×386(54)59 × 34 +59 × 14(55)59 × 99+59(56)53+53×35+64×0.6(57)(89 -41)×9×4 (58)[1-(14 +83)]÷14(59)(94+152)÷152(60)1613×17解方程(1)x ÷29 =67(2)7x -3x =1528(3)X -27 X=114(4)X ÷18 =15×23(5)40%X- 14 =712 (6)95x = 65(7)x +85x =39 (8)6X=314(9) 34 x ÷16 =18 (10)X+ 79 X=43(11)4X -6×32=2 (12)29 ÷x=67(13)8x +6x =1528(14)(1-25%)x =72(15)x -40%x =5.04 (16)x ÷(1-40%)=3.6(17)34x-25%x=12(18)(1-25%)÷x=3.6(19)34x+50%x=12(20)一个数的35是36的65,这个数是多少?(列方程解)化简成最简整数比(1)1.5小时∶30分钟(2)0.625∶65(3)43:81(4)24:48(5)2.8:0.7(6)1:0.25(7)6千米∶300米(8)0.6小时:40分(9)98:32(10)21:34(11)31﹕52(12)0.8﹕1.2(13)6.4:0.16(14)2.25:9(15)83:21(16)0.75:43(17)24:31(18)6.4:0.16(19)36分:1小时(20)308立方厘米:2立方分米解决问题1、一缸水,用去1/2和5桶,还剩30%,这缸水有多少桶?2、一根钢管长10米,第一次截去它的7/10,第二次又截去余下的1/3,还剩多少米?3、修筑一条公路,完成了全长的2/3后,离中点16.5千米,这条公路全长多少千米?4、甲乙两地相距1152千米,一列客车和一列货车同时从两地对开,货车每小时行72千米,比客车快 2/7,两车经过多少小时相遇?5、一件上衣比一条裤子贵160元,其中裤子的价格是上衣的3/5,一条裤子多少元?6、饲养组有黑兔60只,白兔比黑兔多1/5,白兔有多少只?7、学校要挖一条长80米的下水道,第一天挖了全长的1/4,第二天挖了全长的1/2,两天共挖了多少米?还剩下多少米?8、一个长方形的周长是24厘米,长与宽的比是 2:1 ,这个长方形的面积是多少平方厘米?9、一个长方体棱长总和为 96 厘米,长、宽、高的比是 3∶2 ∶1 ,这个长方体的体积是多少?10、一个长方体棱长总和为 96厘米,高为4厘米,长与宽的比是 3 ∶2 ,这个长方体的体积是多少?11、某校参加电脑兴趣小组的有42人,其中男、女生人数的比是4 ∶3,男生有多少人?12、做一个600克豆沙包,需要面粉、红豆和糖的比是3:2:1,面粉红豆和糖各需多少克?13、小明看一本故事书,第一天看了全书的1/9,第二天看了24页,两天看了的页数与剩下页数的比是1:4,这本书共有多少页?14、一个三角形的三个内角的比是2:3:4,这三个内角的度数分别是多少?15、某化肥厂今年产值比去年增加了 20%,比去年增加了500万元,今年道值是多少万元?16、一件商品,原价比现价少20%,现价是1028元,原价是多少元?17、服装店同时买出了两件衣服,每件衣服各卖100元,但其中一件赚20%,另一件陪了20%,问服装店卖出的两件衣服是赚钱了还是亏本了?18、某工厂四月份下半月用水5400吨,比上半月节约20%,上半月用水多少吨?19、一种小麦出粉率为85%,要磨13.6吨面粉,需要这样的小麦多少吨?20、学校有一块圆形草坪,它的直径是30米,这块草坪的面积是多少平方米?如果沿着草坪的周围每隔1.57米摆一盆菊花,要准备多少盆菊花?21、一个圆和一个扇形的半径相等,圆面积是30平方厘米,扇形的圆心角是36度。
小数除法脱式运算+简算300道(含答案)

⼩数除法脱式运算+简算300道(含答案)⼩数除法脱式运算+简算300道⼀.计算题(共50⼩题)1.⽤递等式进⾏计算,能简便的要简便简便计算.7.29×4.6+46×1.271 (28.7﹣18.6÷3.1)×0.8 16﹣5.32﹣4.68 3.7×0.125+6.3÷8 40.8+14.7÷(14.6﹣12.5)0.72+9.6÷3.2 2.⽤简便⽅法计算.3.7×4.5﹣4.4×3.70.25×0.25×4 3.84﹣1.9+0.16﹣1.19﹣7÷2.5×0.4 5.5×[0.672÷(2+2.2)]3.⽤递等式计算,能简算的要简算.28.7÷7×4.59.6÷(15.4﹣12.2)4.6×1.2+2.8×4.693÷3.1÷0.34.计算下列各题(能⽤简便算法的要⽤简便算法).(4.15+0.65)×0.9 9.06×14.7+5.3×9.06(2.3+1.05÷2.1)×2.5 9.18÷[(5.9﹣2.3)×0.25].5.选择合理的⽅法进⾏计算,并写出计算主要过程.12.5×0.5×8 17.5÷(5.7﹣3.2)48.77﹣32.76÷8.410.25÷2.5÷0.4 18.1﹣2.8×4.6 3.01×101﹣30.1×0.1.6.脱式计算,能简算的要简算.4.8÷2.04÷2.4 1.1÷(22÷5)25÷40×0.472+0.9÷0.125 17.37÷0.45﹣3.86÷0.1 9.07﹣22.78÷3.4+3.7.7.⽤递等式计算,能简算的要简算.10.01×101﹣10.01 0.11×1.8+8.2×0.1126×20.2﹣8.4﹣1.8 12.05÷1.25÷0.8.8.递等式计算(能简算的要简算)6.5×99 4.65﹣2.55﹣1.45 2.2×0.25+2.8×0.25 0.25×6.82×4.9.计算下⾯各题,能简算的要简算.102×4.5 8×(20﹣1.25)8.3+8.3×99 (1.25+12.5+125)×8.10.计算(能简算要简算)2.64+8.67+7.36+11.33 2.74×9.5+0.5×2.7(2400﹣480×2.5)÷1.616.8×10.1 1.25×88 6.87×[40÷(3.49﹣3.09)].11.脱式计算(能简简的要简算)2.8+0.2﹣2.8+0.2 37÷12.5÷0.8 1.25×(10+0.8)10.8﹣3.8×0.4÷0.76 0.36÷[(6.1﹣4.6)×0.8].12.计算下⾯各题,能简算的要简算.4.05÷0.9+5.5 3.67×10.1﹣3.67×0.199×0.73+0.73 3.3+6.7×3.5.13.怎样简便怎样算3.7÷2.5÷0.40.25×1.25×329.83×1.5+0.617×15.14.计算下⾯各题.(能简算的要简算)12.13+7.5﹣12.13 7.69﹣(3.7+2.69)7.8×1.019.4×3.2+6×0.32 12.5×3.2 13.8÷(1.38×2)15.下⾯各题,怎样简便就怎样算432.5÷25÷0.4 1.25×3.2×2.5 0.81×99+0.815.9×10.1 100﹣52.8﹣47.2(4﹣0.4)×0.25.16.计算下⾯各题,能简算的要简算.0.75×18÷0.15 9.3÷0.125÷8 1.78×99+1.784.7×4.28+5.3×4.28 2.3×10.2 21.36÷0.2﹣25.9.17.怎样简便就怎样计算28.4×99+28.4 3.6×2010.94×2.5﹣0.454×0.8×12.5×2.517.5÷0.25×17+1315.58÷8.2﹣0.72.18.计算,能简算的要简算.1.25×2.5×0.8×43=10÷0.2÷2.5=8.4÷0.21÷0.5=64×4.5+3.6×45= 1.25×3.2×0.8=14.5×102=19.脱式计算,能简算的要简算.0.34×101 8.8×1.25 2.94×6.3+3.7×2.9421.9﹣9.28﹣10.72 2.7+(11.2﹣2.7)×0.4 1.5×[0.02÷(2.1﹣2.09)].20.计算下⾯各题.(能简算的要简算)10.7﹣22.78÷3.4 5.5×17.3+6.7×5.5 3.76÷0.4÷2.5 0.25×12.5×3.2.21.递等式计算,能简便计算的要简便计算.4.6×25 3.75÷12.5÷0.8 2.5+7.5÷4(3.2﹣1.4)÷0.18﹣1.87.9×7.1+2.9×7.9(30.2﹣4.6×5)÷0.12.22.下⾯各题,怎样简便就怎样计算.0.75×0.5×0.8 5.6×15.7+9.3×5.6 50.4×1.9﹣1.8.23.计算下⾯各题,注意运⽤简便⽅法.2.4﹣0.2÷5×60 0.25×6.8×405.52﹣0.55﹣0.45 0.49×7.2﹣7.2×0.39.24.计算,能简算的要写出简算过程.4×0.8×2.5×12.5 2.25×4.8+77.5×0.48.25.计算下⾯各题,能简算的要简算.13.73+6.27÷0.318÷0.4÷2.5 0.75×99+0.752.85×5.35+2.85×4.65 1.5×0.4÷1.5×0.4.26.怎样简便就怎样计算28.4×99+28.4 3.6×201 0.94×2.5﹣0.454×0.8×12.5×2.5 17.5÷0.25×17+13 1.25×8.08.27.下⾯各题,怎样算简便就怎样算.2.45﹣(1.45+0.89) 1.25×1.7×0.8 5.3×0.82﹣0.82×0.33.6÷[12×(0.53﹣0.45)].28.计算下⾯各题,能简算的要简算.125×32×2.5 2.6×(3.4+1.6) 6.7×5.5+5.5×3.3.36×999.07﹣2.2﹣7.817.6÷4÷2.529.计算下⾯各题,能简算的要简算.2.5×0.27×4 0.63×101 0.78+0.22÷53.7×12.5+4.3×12.5 (0.36+5.4)÷0.6 4.5÷0.25÷1.6.30.脱式计算(能简便的⽤简便计算).1.6×(2.25+10.5÷1.5)74×57+43×740.6÷[(6.1﹣4.6)×0.8]101×92﹣92125×64 46.2×0.56+5.37×5.6+1×0.05631.脱式计算(能简算的就简算)1.5×102 1.25×213×0.8 72×0.81﹢10.41.25×5.6 6.05÷0.5+10.75 29.6÷0.8﹣1.2×5.32.脱式计算下列各题,能简算的要简算.2.69×99+2.69 1.25×2.3×0.83.17×5.6+4.4×3.1738÷0.25÷0.4 6.5÷0.125 0.225÷0.25×433.脱式计算(能简算的要简算).17.54+28.35+3.46+1.55 32.36﹣13.43﹣(7.57+1.36)7.2×2.745÷0.363.85×5.6+5.4×3.85﹣3.85 (3.2+0.128)÷0.8 (13.3﹣8.8)×3.2÷0.36.34.脱式计算(能简算的要简算)0.75×4×0.25×4 6.3×10.115.58÷8.2﹣0.72 4.536÷0.8÷14.35.脱式计算,能简算的要简算.7.5×2+1.25÷0.598×7.580÷0.25+0.75 19×3.8+3.8 1.25×3.4×0.8 5.12÷0.4÷2.536.计算,能简算的要简算55.04+12.8﹣3.30.25×32×0.1257.8×75+75×0.2.37.⽤你喜欢的⽅法计算.0.21×14÷0.50.25×13×4 1.25×9.7﹣1.25×1.716.5÷[(5.2+4.8)×1.5](8.92﹣0.45)÷(2.5+4.5)38.下⾯各题怎样算简便就怎样算.6.8×0.46+0.54 5.4×2.3+5.4×7.70.25×32×12.5 75÷1.25÷8.39.⽤递等式计算,(有★⽤简算)7.8﹣7.2+0.9 0.38+0.26+3.4 (125﹣45)×313+[(41+22)÷9]★6.7+2.5+3.3★13×25×4.40.脱式计算,能简算的要简算12.8+2.04×9.50.15×1999+0.150.76×6.5﹣0.76×5.578÷0.25÷0.4.41.计算下⾯各题,怎样简便就怎样计算.4.05÷0.5+10.75 6.8×2.7+2.7×3.2 6.8×0.75÷0.570.3﹣17.48÷7.6 8.5×1.2÷3.4 13.75÷0.125﹣2.7.42.计算下⾯各题,能⽤简便⽅法计算的要⽤简便⽅法.0.75×18÷0.15 6.15÷0.125÷0.8 4.55÷0.28﹣0.471.7×2.5×0.08 1.89×11﹣1.893.6×0.35+6.4×0.3543.计算下⾯各题,能简算的要简算.3.4+6.6÷0.3 25×1.25×0.04×0.899×0.73+7.3×0.1 96.5÷1.25÷0.8.44.脱式计算(能简算的⽤简算⽅法)82.4﹣12.4×5 18.5﹣3.21﹣4.79 8.4+3.8+1.6+6.20.25×17.3×0.4 7.2×(10+0.1) 3.54×0.29﹣0.29×2.5445.计算下列各题,怎么简便就怎么算.0.125×32 8.8÷0.25÷4 56.5×99+56.50.78×1019.9﹣2.07÷2.312.75÷[14.6﹣(1.3+8.2)].46.计算,能简算的要简算.60.8﹣36÷3.6 12.5×7.2×0.899×78.5+78.5 24.6﹣8.9﹣1.10.9+9.9+99.9+999.9 695÷25÷4.47.脱式计算(能简算的要简算)5.8+6.3÷9×0.5 1.25×0.8÷1.25×0.8 1.92÷0.12﹣2.72.65×1.7+1.35×1.7﹣1.7138÷0.25÷4 1.25×2.5×3.248.你能想出简便⽅法来计算下⾯各题吗?25×5+74×5+5 6.74+12.62+24.38+3.2687﹣2.123﹣0.877 30.65﹣(7.65+5.4)(40+8)×125 32×38+32×62.49.脱式计算.(能简算的要简算)65×102 8.23﹣(2.67+3.23)32×16+14×32 8.46+7.26+1.51+2.84 27×[(263+37)÷50]125×32×25.50.递等式计算(能简算的要简算)5.6×0.25 0.32×0.25×12.56.4÷(0.3×2+0.2)201×6.5﹣6.5 102×4.5 2.2×0.25+2.8×0.25.⼩数除法脱式运算+简算300道参考答案与试题解析⼀.计算题(共50⼩题)1.【解答】解:①7.29×4.6+46×1.271 =7.29×4.6+4.6×12.71=(7.29+12.71)×4.6=20×4.6=92;②(28.7﹣18.6÷3.1)×0.8 =(28.7﹣6)×0.8=22.7×0.8=18.16;③16﹣5.32﹣4.68=16﹣(5.32+4.68)=16﹣10=6;④3.7×0.125+6.3÷8 =3.7×+6.3×=(3.7+6.3)×=10×=;⑤40.8+14.7÷(14.6﹣12.5)=40.8+14.7÷2.1=40.8+7=47.8;⑥0.72+9.6÷3.2=0.72+3=3.72.2.【解答】解:(1)3.7×4.5﹣4.4×3.7=3.7×(4.5﹣4.4)=3.7×0.1=0.37;(2)0.25×0.25×4=0.25×(0.25×4)=0.25×1=0.25;(3)3.84﹣1.9+0.16﹣1.1=(3.84+0.16)﹣(1.9+1.1)=4﹣3=1;(4)9﹣7÷2.5×0.4=9﹣2.8×0.4=9﹣1.12=7.88;(5)5.5×[0.672÷(2+2.2)]=5.5×[0.672÷4.2]=5.5×0.16=0.88.3.【解答】解:(1)28.7÷7×4.5=4.1×4.5=18.45(2)9.6÷(15.4﹣12.2)=9.6÷3.2=3(3)4.6×1.2+2.8×4.6=4.6×(1.2+2.8)=4.6×4=18.4(4)93÷3.1÷0.3=30÷0.3=1004.【解答】解:(1)(4.15+0.65)×0.9=4.8×0.9=4.32;(2)9.06×14.7+5.3×9.06=9.06×(14.7+5.3)=9.06×20=181.2;(3)(2.3+1.05÷2.1)×2.5=(2.3+0.5)×2.5=2.8×2.5=7;(4)9.18÷[(5.9﹣2.3)×0.25]=9.18÷[3.6×0.25]=9.18÷0.9=10.2.5.【解答】解:(1)12.5×0.5×8=12.5×8×0.5=100×0.5=50;(2)17.5÷(5.7﹣3.2)=17.5÷2.5=7;(3)48.77﹣32.76÷8.4=48.77﹣3.9=44.87;(4)10.25÷2.5÷0.4=10.25÷(2.5×0.4)=10.25÷1=10.25;(5)18.1﹣2.8×4.6=18.1﹣12.88=5.22;(6)3.01×101﹣30.1×0.1=3.01×(101﹣1)=30.1×100=30100.6.【解答】解:(1)4.8÷2.04÷2.4=4.8÷2.4÷2.04=2÷2.04=(2)1.1÷(22÷5)=1.1÷22×5=0.05×5=0.25(3)25÷40×0.4=25×0.4÷40=10÷40=0.25(4)72+0.9÷0.125=72+7.2=79.2(5)17.37÷0.45﹣3.86÷0.1=38.6﹣38.6=0(6)9.07﹣22.78÷3.4+3.7=9.07﹣6.7+3.7=2.37+3.7=6.077.【解答】解:(1)10.01×101﹣10.01=10.01×(101﹣1)=10.01×100=1001(2)0.11×1.8+8.2×0.11=0.11×(1.8+8.2)=0.11×10=1.1(3)26×20.2﹣8.4﹣1.8=525.2﹣(8.4+1.8)=525.2﹣10.2=515(4)12.05÷1.25÷0.8=12.05÷(1.25×0.8)=12.05÷1=12.058.【解答】解:①6.5×99=6.5×(100﹣1)=6.5×100﹣6.5=650﹣6.5=643.5②4.65﹣2.55﹣1.45=4.65﹣(2.55+1.45)=4.65﹣4=0.65③2.2×0.25+2.8×0.25=(2.2+2.8)×0.25=5×0.25=1.25④0.25×6.82×4=(0.25×4)×6.82=1×6.82=6.829.【解答】解:①102×4.5=(100+2)×4.5=100×4.5+2×4.5=450+9=459②8×(20﹣1.25)=8×20﹣8×1.25=160﹣10=150③8.3+8.3×99 =8.3×(1+99)=8.3×100=830④(1.25+12.5+125)×8=1.25×8+12.5×8+125×8=10+100+1000=110+1000=111010.【解答】解:①2.64+8.67+7.36+11.33=(2.64+7.36)+(8.67+11.33)=10+20=30②2.74×9.5+0.5×2.7=26.03+1.35=27.38③(2400﹣480×2.5)÷1.6=(2400﹣1200)÷1.6=1200÷1.6=750④16.8×10.1=16.8×(10+0.1)=16.8×10+16.8×0.1=168+1.68=169.68⑤1.25×88=1.25×(80+8)=1.25×80+1.25×8=100+10=110⑥6.87×[40÷(3.49﹣3.09)]=6.87×[40÷0.4]=6.87×100=68711.【解答】解:(1)2.8+0.2﹣2.8+0.2=(2.8﹣2.8)+(0.2+0.2)=0+0.4=0.4(2)37÷12.5÷0.8=37÷(12.5×0.8)=37÷10=3.7(3)1.25×(10+0.8)=1.25×10+1.25×0.8=12.5+1=13.5(4)10.8﹣3.8×0.4÷0.76=10.8﹣1.52÷0.76=10.8﹣2=8.8(5)0.36÷[(6.1﹣4.6)×0.8]=0.36÷[1.5×0.8]=0.36÷1.2=0.3 12.【解答】解:(1)4.05÷0.9+5.5=4.5+5.5=10(2)3.67×10.1﹣3.67×0.1=3.67×(10.1﹣0.1)=3.67×10=36.7(3)99×0.73+0.73=(99+1)×0.73=100×0.73=73(4)3.3+6.7×3.5=3.3+23.45=26.7513.【解答】解:①3.7÷2.5÷0.4=3.7÷(2.5×0.4)=3.7÷1=3.7②0.25×1.25×32=0.25×1.25×(4×8)=(0.25×4)×(1.25×8)=1×10=10③9.83×1.5+0.617×15=9.83×1.5+6.17×1.5=1.5×(9.83+6.17)=1.5×16=2414.【解答】解:①12.13+7.5﹣12.13=12.13﹣12.13+7.5=0+7.5=7.5 ②7.69﹣(3.7+2.69)=7.69﹣3.7﹣2.69=7.69﹣2.69﹣3.7=5﹣3.7=1.3③7.8×1.01=7.8×(1+0.01)=7.8×1+7.8×0.01=7.8+0.078=7.878④9.4×3.2+6×0.32=9.4×3.2+0.6×3.2=3.2×(9.4+0.6)=3.2×10=32 ⑤12.5×3.2=12.5×(8×0.4)=12.5×8×0.4=100×0.4=40 ⑥13.8÷(1.38×2)=13.8÷1.38÷2=10÷2=515.【解答】解:①432.5÷25÷0.4=432.5÷(25×0.4)=432.5÷10=43.25②1.25×3.2×2.5=1.25×(8×0.4)×2.5=(1.25×8)×(0.4×2.5)=10×1=10③0.81×99+0.81=0.81×(99+1)=0.81×100=81④5.9×10.1=5.9×(10+0.1)=5.9×10+5.9×0.1=59+0.59=59.59⑤100﹣52.8﹣47.2=100﹣(52.8+47.2)=100﹣100=0⑥(4﹣0.4)×0.25=4×0.25﹣0.4×0.25=1﹣0.1=0.916.【解答】解:(1)0.75×18÷0.15=0.75÷0.15×18=5×18=90;(2)9.3÷0.125÷8 =9.3÷(0.125×8)=9.3÷1=9.3;(3)1.78×99+1.78=1.78×(99+1)=1.78×100=178;(4)4.7×4.28+5.3×4.28 =(4.7+5.3)×4.28=10×4.28=42.8;(5)2.3×10.2 =2.3×(10+0.2)=2.3×10+2.3×0.2=23+0.46=23.46;(6)21.36÷0.2﹣25.9=106.8﹣25.9=80.9.17.【解答】解:(1)28.4×99+28.4=28.4×(99+1)=28.4×100=2840(2)3.6×201=3.6×(200+1)=3.6×200+3.6×1=720+3.6=723.6(3)0.94×2.5﹣0.45=2.35﹣0.45=1.9(4)4×0.8×12.5×2.5=(4×2.5)×(0.8×12.5)=10×10=100(5)17.5÷0.25×17+13=70×17+13=1190+13=1203(6)15.58÷8.2﹣0.72=1.9﹣0.72=1.1818.【解答】解:(1)1.25×2.5×0.8×43=1.25×0.8×2.5×43=1×2.5×43=107.5;(2)10÷0.2÷2.5=10÷(0.2×2.5)=10÷0.5=20;(3)8.4÷0.21÷0.5=40÷0.5=80;(4)64×4.5+3.6×45=64×4.5+36×4.5=(64+36)×4.5=100×4.5=450;(5)1.25×3.2×0.8=1.25×0.8×3.2=1×3.2=3.2;(6)14.5×102=14.5×(100+2)=14.5×100+14.5×2=1450+29=1479.19.【解答】解:(1)0.34×101=0.34×(100+1)=0.34×100+0.34×1=34+0.34=34.34;(2)8.8×1.25=(1.1×8)×1.25=1.1×(8×1.25)=1.1×10=11;(3)2.94×6.3+3.7×2.94=2.94×(6.3+3.7)=2.94×10=29.4;(4)21.9﹣9.28﹣10.72=21.9﹣(9.28+10.72)=21.9﹣20=1.9;(5)2.7+(11.2﹣2.7)×0.4=2.7+8.5×0.4=2.7+3.4=6.1;(6)1.5×[0.02÷(2.1﹣2.09)]=1.5×[0.02÷0.01]=1.5×2=3.20.【解答】解:①10.7﹣22.78÷3.4 =10.7﹣6.7=4②5.5×17.3+6.7×5.5=5.5×(17.3+6.7)=5.5×24=132③3.76÷0.4÷2.5=3.76÷(0.4×2.5)=3.76÷1=3.76 ④0.25×12.5×3.2=0.25×12.5×(4×0.8)=(0.25×4)×(12.5×0.8)=1×10=1021.【解答】解:(1)4.6×25=(4+0.6)×25=4×25+0.6×25=100+15=115;(2)3.75÷12.5÷0.8=3.75÷(12.5÷0.8)=3.75÷10=0.375;(3)2.5+7.5÷4=2.5+1.875=4.375;(4)(3.2﹣1.4)÷0.18﹣1.8=1.8÷0.18﹣1.8=10﹣1.8=8.2;(5)7.9×7.1+2.9×7.9=7.9×(7.1+2.9)=7.9×10=79;(6)(30.2﹣4.6×5)÷0.12=(30.2﹣23)÷0.12=7.2÷0.12=60.22.【解答】解:(1)0.75×0.5×0.8=0.75×(0.5×0.8)=0.75×0.4=0.3;(2)5.6×15.7+9.3×5.6=5.6×(15.7+9.3)=5.6×25=14×0.4×25=14×(0.4×25)=14×10=140;(3)50.4×1.9﹣1.8=95.76﹣1.8=93.96.23.【解答】解:①2.4﹣0.2÷5×60=2.4﹣0.04×60=2.4﹣2.4=0②0.25×6.8×40=(0.25×40)×6.8=10×6.8=68③5.52﹣0.55﹣0.45=5.52﹣(0.55+0.45)=5.52﹣1=4.52④0.49×7.2﹣7.2×0.39=7.2×(0.49﹣0.39)=7.2×0.1=0.7224.【解答】解:(1)4×0.8×2.5×12.5=(4×2.5)×(0.8×12.5)=10×10=100(2)×14+87×﹣=×(14+87﹣1)=×100=80(3)(+)×42 =×42+×42=35+12=47(4)2.25×4.8+77.5×0.48=2.25×4.8+7.75×4.8=(2.25+7.75)×4.8=10×4.8=48 25.【解答】解:(1)13.73+6.27÷0.3=13.73+20.9=34.63;(2)18÷0.4÷2.5=18÷(0.4×2.5)=18÷1=18;(3)0.75×99+0.75=0.75×(99+1)=0.75×100=75;(4)2.85×5.35+2.85×4.65=2.85×(5.35+4.65)=2.85×10=28.5;(5)1.5×0.4÷1.5×0.4=1.5÷1.5×0.4×0.4=1×0.4×0.4=0.4×0.4=0.16.26.【解答】解:(1)28.4×99+28.4=28.4×(99+1)=28.4×100=2840;(2)3.6×201=3.6×(200+1)=3.6×200+3.6×1=720+3.6=723.6;(3)0.94×2.5﹣0.45=2.35﹣0.45=1.9;(4)4×0.8×12.5×2.5=(4×2.5)×(0.8×12.5)=10×10=100;(5)17.5÷0.25×17+13=70×17+13=1190+13=1203;(6)1.25×8.08=1.25×(8+0.08)=1.25×8+1.25×0.08=10+0.1=10.1.27.【解答】解:①2.45﹣(1.45+0.89)=2.45﹣1.45﹣0.89=1﹣0.89=0.11②1.25×1.7×0.8=1.25×0.8×1.7=1×1.7=1.7③5.3×0.82﹣0.82×0.3=0.82×(5.3﹣0.3)=0.82×5=4.1 ④3.6÷[12×(0.53﹣0.45)]3.6÷12÷(0.53﹣0.45)=0.3÷0.08=3.7528.【解答】解:(1)125×32×2.5=125×(4×8)×2.5=(125×8)×(4×2.5)=1000×10=10000;(2)2.6×(3.4+1.6)=2.6×5=13;(3)6.7×5.5+5.5×3.3=(6.7+3.3)×5.5=10×5.5=55;(4)36×99=36×(100﹣1)=36×100﹣36×1=3600﹣36=3564;(5)9.07﹣2.2﹣7.8=9.07﹣(2.2+7.8)=9.07﹣10=﹣0.93;(6)17.6÷4÷2.5=17.6÷(4×2.5)=17.6÷10=1.76.29.【解答】解:(1)2.5×0.27×4=2.5×4×0.27=10×0.27=2.7;(2)0.63×101=0.36×(100+1)=0.36×100+0.36×1=36+0.36=36.36;(3)0.78+0.22÷5=0.78+0.044=0.824;(4)3.7×12.5+4.3×12.5=(3.7+4.3)×12.5=8×12.5=100;(5)(0.36+5.4)÷0.6=5.76÷0.6=9.6;(6)4.5÷0.25÷1.6=4.5÷(0.25×1.6)=4.5÷0.4=11.25.30.【解答】解:(1)1.6×(2.25+10.5÷1.5)=1.6×(2.25+7)=1.6×9.25=14.8;(2)74×57+43×74=74×(57+43)=74×100=7400;(3)0.6÷[(6.1﹣4.6)×0.8]=0.6÷[1.5×0.8]=0.6÷1.2=0.5;(4)101×92﹣92=(101﹣1)×92=100×92=9200;(5)125×64 =125×8×8=1000×8=8000;(6)46.2×0.56+5.37×5.6+1×0.056=4.62×5.6+5.37×5.6+0.01×5.6=(4.62+5.37+0.01)×5.6=10×5.6=56.31.【解答】解:①1.5×102=1.5×(100+2)=1.5×100+1.5×2=150+3=153②1.25×213×0.8=1.25×0.8×213=1×213=213 ③72×0.81﹢10.4=58.32+10.4=68.72④1.25×5.6 =1.25×(8×0.7)=1.25×8×0.7=10×0.7=7⑤6.05÷0.5+10.75=12.1+10.75=22.85⑥29.6÷0.8﹣1.2×5=37﹣6=31 32.【解答】解:(1)2.69×99+2.69=2.69×(99+1)=2.69×100=269(2)1.25×2.3×0.8=1.25×0.8×2.3=1×2.3=2.3(3)3.17×5.6+4.4×3.17=3.17×(5.6+4.4)=3.17×10=31.7(4)38÷0.25÷0.4=38÷(0.25×0.4)=38÷0.1=380(5)60.125=6.5÷=6.5×8=52(6)0.225÷0.25×4=0.9×4=3.633.【解答】解:①17.54+28.35+3.46+1.55=17.54+3.46+(28.35+1.55)=21+29.9=50.9 ②32.36﹣13.43﹣(7.57+1.36)=32.36﹣13.43﹣7.57﹣1.36=32.36﹣1.36﹣(13.43+7.57)=31﹣21=1③7.2×2.745÷0.36=7.2÷0.36×2.745=20×2.745=54.9④3.85×5.6+5.4×3.85﹣3.85 =3.85×(5.6+5.4﹣1)=3.85×10=38.5⑤(3.2+0.128)÷0.8 =3.2÷0.8+0.128÷0.8=4+0.16=4.16⑥(13.3﹣8.8)×3.2÷0.36=4.5×3.2÷0.36=14.4÷0.36=4034.【解答】解:①0.75×4×0.25×4=(0.75×4)×(0.25×4)=3×1=3②6.3×10.1=6.3×(10+0.1)=6.3×10+6.3×0.1=63+0.63=63.63③15.58÷8.2﹣0.72=1.9﹣0.72=1.18 ④4.536÷0.8÷14=5.67÷14=0.40535.【解答】解:(1)7.5×2+1.25÷0.5=15+2.5=17.5;(2)98×7.5=(100﹣2)×7.5=100×7.5﹣2×7.5=750﹣15=735;(3)80÷0.25+0.75=320+0.75=320.75;(4)19×3.8+3.8=(19+1)×3.8=20×3.8=76;(5)1.25×3.4×0.8=1.25×0.8×3.4=1×3.4=3.4;(6)5.12÷0.4÷2.5=5.12÷(0.4×2.5)=5.12÷1=5.12.36.【解答】解:(1)55.04+12.8﹣3.3=67.84﹣3.3=64.54;(2)0.25×32×0.125=0.25×(4×8)×0.125=(0.25×4)×(8×0.125)=1×1=1;(3)7.8×75+75×0.2=(7.8+0.2)×75=8×75=600.37.【解答】解:(1)0.21×14÷0.5=2.94÷0.5=5.88;(2)0.25×13×4=0.25×4×13=1×13=13;(3)1.25×9.7﹣1.25×1.7=1.25×(9.7﹣1.7)=1.25×8=10;(4)16.5÷[(5.2+4.8)×1.5]=16.5÷[10×1.5]=16.5÷15=1.1;(5)(8.92﹣0.45)÷(2.5+4.5)=8.47÷7=1.21.38.【解答】解:(1)6.8×0.46+0.54=3.128+0.54=3.668;(2)5.4×2.3+5.4×7.7=5.4×(2.3+7.7)=5.4×10=54;(3)0.25×32×12.5=0.25×(4×8)×12.5=(0.25×4)×(8×12.5)=1×100=100;(4)75÷1.25÷8=75÷(1.25×8)=75÷10=7.5.39.【解答】解:①7.8﹣7.2+0.9 =0.6+0.9=1.5②0.38+0.26+3.4 =0.64+3.4=4.04③(125﹣45)×3=80×3=240④13+[(41+22)÷9]=13+[63÷9]=13+7=20⑤6.7+2.5+3.3=(6.7+3.3)+2.5=10+2.5=12.5⑥13×25×4=13×(25×4)=13×100=130040.【解答】解:(1)12.8+2.04×9.5=12.8+19.38=32.18;(2)0.15×1999+0.15=0.15×(1999+1)=0.15×2000=300;(3)0.76×6.5﹣0.76×5.5=0.76×(6.5﹣5.5)=0.76×1=0.76;(4)78÷0.25÷0.4=78÷(0.25×0.4)=78÷0.1=780.41.【解答】解:(1)4.05÷0.5+10.75 =8.1+10.75=18.85;(2)6.8×2.7+2.7×3.2 =(6.8+3.2)×2.7=10×2.7=27;(3)6.8×0.75÷0.5=5.1÷0.5=10.2;(4)70.3﹣17.48÷7.6 =70.3﹣2.3=68;(5)8.5×1.2÷3.4=10.2÷3.4=3;(6)13.75÷0.125﹣2.7=110﹣2.7=107.3.42.【解答】解:(1)0.75×18÷0.15=13.5÷0.15=90;(2)6.15÷0.125÷0.8=6.15÷(0.125×0.8)=6.15÷0.1=61.5;(3)4.55÷0.28﹣0.47=16.25﹣0.47=15.78;(4)1.7×2.5×0.08=1.7×(2.5×0.08)=1.7×0.2=0.34;(5)1.89×11﹣1.89=1.89×(11﹣1)=1.89×10=18.9;(6)3.6×0.35+6.4×0.35=(3.6+6.4)×0.35=10×0.35=3.5.43.【解答】解:(1)3.4+6.6÷0.3=3.4+22=25.4;(2)25×1.25×0.04×0.8=(25×0.04)×(1.25×0.8)=1×1=1;(3)99×0.73+7.3×0.1=99×0.73+0.73×1=(99+1)×0.73=100×0.73=73;(4)96.5÷1.25÷0.8=96.5÷(1.25×0.8)=96.5÷1=96.5.44.【解答】解:(1)82.4﹣12.4×5=82.4﹣62=20.4;(2)18.5﹣3.21﹣4.79=18.5﹣(3.21+4.79)=18.5﹣8=10.5;(3)8.4+3.8+1.6+6.2=8.4+1.6+3.8+6.2=(8.4+1.6)+(3.8+6.2)=10+10=20;(4)0.25×17.3×0.4 =0.25×0.4×17.3 =0.1×17.3=1.73;(5)7.2×(10+0.1)=7.2×10+7.2×0.1=72+0.72=72.72;(3)3.54×0.29﹣0.29×2.54=(3.54﹣2.54)×0.29=1×0.29=0.29.45.【解答】解:(1)0.125×32=0.125×(8×4)=(0.125×8)×4=1×4=4;(2)8.8÷0.25÷4=8.8÷(0.25×4)=8.8÷1=8.8;(3)56.5×99+56.5=56.5×(99+1)=56.5×100=5650;(4)0.78×101=0.78×(100+1)=0.78×100+0.78×1=78+0.78=78.78;(5)9.9﹣2.07÷2.3=9.9﹣0.9=9;(6)12.75÷[14.6﹣(1.3+8.2)]=12.75÷[14.6﹣9.5]=12.75÷5.1=2.5.46.【解答】解:(1)60.8﹣36÷3.6=60.8﹣10=50.8;(2)12.5×7.2×0.8=12.5×0.8×7.2=10×7.2=72;(3)99×78.5+78.5=(99+1)×78.5=100×78.5=7850;(4)24.6﹣8.9﹣1.1=24.6﹣(8.9+1.1)=24.6﹣10=14.6;(5)0.9+9.9+99.9+999.9=(0.1+0.1+0.1+0.6)+9.9+99.9+999.9=(0.1+9.9)+(0.1+99.9)+(0.1+999.9)+0.6=10+100+1000+0.6=1110.6;(6)695÷25÷4=695÷(25×4)=695÷100=6.95.47.【解答】解:(1)5.8+6.3÷9×0.5=5.8+0.7×0.5=5.8+0.35=6.15;(2)1.25×0.8÷1.25×0.8=(1.25÷1.25)×(0.8×0.8)=1×0.64=0.64;(3)1.92÷0.12﹣2.7=16﹣2.7=13.3;(4)2.65×1.7+1.35×1.7﹣1.7=(2.65+1.35﹣1)×1.7=3×1.7=5.1;(5)138÷0.25÷4=138÷(0.25×4)=138÷1=138;(6)1.25×2.5×3.2=1.25×2.5×(4×0.8)=(1.25×0.8)×(2.5×4)=1×10=10.48.【解答】解:(1)25×5+74×5+5 =(25+74+1)×5=100×5=500(2)6.74+12.62+24.38+3.26=(6.74+3.26)+(12.62+24.38)=10+37=47(3)87﹣2.123﹣0.877 =87﹣(2.123+0.877)=87﹣3=84(4)30.65﹣(7.65+5.4)=30.65﹣7.65﹣5.4=23﹣5.4=17.6(5)(40+8)×125=40×125+8×125=6000+1000=7000(6)32×38+32×62=32×(38+62)=32×100=320049.【解答】解:(1)65×102=65×(100+2)=65×100+65×2=6500+130=6630(2)8.23﹣(2.67+3.23)=8.23﹣2.67﹣3.23 =(8.23﹣3.23)﹣2.67=5﹣2.67=2.33(3)32×16+14×32=32×(16+14)=32×30=960(4)8.46+7.26+1.51+2.84=(8.46+1.51)+(7.26+2.84)=10+10.1=20.1(5)27×[(263+37)÷50]=27×[300÷50]=27×6=162(6)125×32×25=125×8×4×25=(125×8)×(4×25)=1000×100=10000050.【解答】解:(1)5.6×0.25 =(1.4×4)×0.25=1.4×(4×0.25)=1.4×1=1.4(2)0.32×0.25×12.5 =(0.8×0.4)×0.25×12.5=(0.8×12.5)×(0.4×0.25)=10×0.1=1(3)6.4÷(0.3×2+0.2)=6.4÷(0.6+0.2)=6.4÷0.8=8(4)201×6.5﹣6.5 =(201﹣1)×6.5=200×6.5=1300(5)102×4.5 =(100+2)×4.5=100×4.5+2×4.5=450+9=459(6)2.2×0.25+2.8×0.25=(2.2+2.8)×0.25=5×0.25=1.25。
苏教四年级下册脱式简便计算1000道

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×449×49+49×5149×99+49(68+32)×55×289×268+32×5(125×25)×4(125 + 17)×8 25×64×12585×82 + 82×15 25×97 + 25×3 64×15-14×15 125×8888×10287×99 + 8779×25 + 2576×101-76378 + 527 + 73 167 + 289 + 3358 + 39 + 42 + 61 36×45+36×56-36 66×93+93×33+9399 × 3246×2597+89+1188×102125×8826+47+17485+47+15+53815+49+65+14+11 72×12518+77+40+23+48 123×64+123×3639×4×5125×6×825×2432×305103×1578×24-24×6849×49+49×(40+6)×25 (68+32)×536×97—58×36+61×36 3000÷25÷4720÷15÷6150÷25÷2 5000÷8÷12599×23+2356×7+45×7-7 125×13×87 900—178—122(79十21)÷20 (125+17)×8 102×100+1028×12+8×75000÷8÷125165+204+335+96 3000÷25÷456×7+45×7-7 810÷4×5280+840÷24×58×(25-144÷24) 1000÷(15+5×2)804-(43+870÷15) 156×107-772932×(3×22+78)360÷[(12+6)×5](105×12-635)÷25(45+38-16)×24 500-(240+38×6)[64-(87-42)]×15(300+6)×1225×(4+8)(12+24+80)×5084×101204×2578×10299×6499×1638×9899×137+137 25+199×2532×16+14×32 88×12572×12512×253600÷25÷43000÷125÷8 1250÷25÷5 1200—624-76 2100—728—772 273-73—27704×2525×32×125 32×(25+125) 88×125102×76 58×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷4 8100÷4÷75 16800÷120 30100÷2100 32000÷400 21500÷125 49700÷700 1248÷24 3150÷15 4800÷25 2356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)(300+6) ×1225×(4+8)125×(35+8)(13+24)×884×101504×2578×10225×20499×6499×16638×99999×9999×13+1325+199×2532×16+14×3278×4+78×3+78×3125×32×825×32×12588×12572×1253600÷25÷4 8100÷4÷753000÷125÷8 1250÷25÷5 1200—624—76 2100—728-772273-73—27847—527-273278+463+22+37 732+580+268 1034+780320+102425+14+186 214—(86+14)787-(87—29)365—(65+118)455—(155+230)576-285+85825-657+57690-177+77755-287+87 871—299 157—99 363—199968-599178×01—17883×102-83×217×23—23×735×127-35×16—11×35 600—60÷1520×4÷20×4736-35×2025×4÷25×498-18×5+2556×8÷56×8280—80÷ 412×6÷12×6175-75÷2525×8÷25×8 80-20×2+6036×9÷36×9 36-36÷6-6 100+45-100+45 15×97+3100+1—100+1 48×99+11000+8-1000+8 5+95×28102+1—102+165+35×1325+75-25+75 40+360÷20-10 13+24×8 672—36+64 324—68+32100-36+6426×39+61×26 356×9-56×9 99×55+55 78×101-7852×76+47×76+76 134×56-134+45×134 48×52×2-4×4825×23×(40+4)999×999+1999184+98695+202864-199738-301380+476+120(569+468)+(432+131) 704×25256-147-53373-129+29189-(89+74)28×4×25125×32×259×72×125720÷16÷5630÷42 456-(256-36)102×3598×42158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99999 7755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-357 2365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)88×125102×76178×101-17884×36+64×8475×99+2×7598×199123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+1381248÷243150÷154800÷2521500÷125375+219+381+2255001-247-1021-232 (181+2564)+2719378+44+114+242+222 276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017 16800÷12025×42×468×125×84×39×254×25+16×2536×99(25+15)×449×99+49(68+32)×5 5×289×268+32×5(125×25)×4 (125 + 17)×8 25×64×12585×82 + 82×15 25×97 + 25×3 64×15-14×15 125×8888×10287×99 + 8779×25 + 2576×101-76378 + 527 + 73 167 + 289 + 3358 + 39 + 42 + 61 36×45+36×56-36 66×93+93×33+93 99 × 3246×2597+89+11 26+47+17485+47+15+53815+49+65+14+1172×12518+77+40+23+4871+73+69+74+68+70+69 123×64+123×3639×4×5125×6×825×2432×305103×1578×24-24×6849×49+49×(40+6)×25 (68+32)×568+32×549×99+4936×97—58×36+61×363000÷25÷4720÷15÷6150÷25÷25000÷8÷12599×23+2356×7+45×7-7125×13×87 900—178—122(79十21)÷20 125×72×4728×79十272×79 (20+4)× 2599×111546一(546—239)9 × 37+9 ×635×289×2 35×37+65×37 124×25 - 25×2485×82+82×1532×(200+3)38×29+38(125×25)×475×299+75(4 + 8)× 12525 ×(20 + 4)45 × 7 + 55 × 78 × 27 + 8 × 73103 × 32329×1019 × 37+9 ×6399×2336×97—58×36+61×36(125+17)×8102×100+1028×12+8×75000÷8÷125165+204+335+96 3000÷25÷456×7+45×7-7 720÷15÷6150÷25÷255+260+140+245 645-180—245382×101—3824×60×50×8102×9935×8+35×6-4×35 99×78+7858×72+28×58432÷54+17×54 125×243000÷125÷8486-137-6336+59+41+5423×7+23×378×1021462-369-63125×36×4203-135÷597-12×6+43135×995620÷(562×5)175+25÷25+1525×5+74×5+537+125+63+175 7263+298125×32×25(40+8)×125459×802+197×459+459 32×38+32×621923-456-544265×99+265101×8713×49+49×87125×25×32(250+25)×40404×259999+998+97+6168-52-481300÷25÷475×56—56×28125×8837+125+63+175 688—534+112156×l0l-1568×(29×l25)22×35256×7-56×7125×(8+4)99×99+9942×29+42×71 32×12557×101-57 1800÷25÷489×10149×102-2×49 125×76×84×(500+25)301×7937×99+3725×14×4125×72×483×5+5×17728×79十272×79 1546一(546—239)(40+8)×125125×89×832×38+32×6225×5+74×5+557×101–5737+22+63+45 530-475-258×(125×ll)64×99+64 4900÷25÷4 384+98×25×4 724+26×24+724(100+4)×25 17×43-43×7(600+16)×512×25×4198÷99×34+335×99+35324×16+176×16 756-193-207 4800÷25÷495×101125×64 998—29925×2×19×244×2572×125101×92103×3241000÷8÷125150×40×25×25625÷75+25×3225×23×428×38+72×38865-(184+165)-516 93×201-93125×12×8×263×10+91×63-63125+25×6(135+75)÷(14×5) 120-60÷5×51024÷16×3(135+415)÷5+16 1200-20×720-720÷15(360-144)÷24×3240+480÷30×(6+13)(120×2+120)÷9 164-13×5+85330÷(65-50)128-6×8÷1664×(12+65÷13)19×96-962÷74 10000-(59+66)×64 5940÷45×(798-616)(315×40-364)÷7 12520÷8×(121÷11)(2010-906)×(65+15)(20+120÷24)×8106×9-76×9117÷13+37×(65+35)540-(148+47)÷13 (308—308÷28)×11(238+7560÷90)÷14 21×(230-192÷4)19×96-962÷74 10000-(59+66)×64 5940÷45×(798-616)(315×40-364)÷7735×(700-400÷25)1520-(1070+28×2)9405-2940÷28×21 920—1680÷40÷7690+47×52-398148+3328÷64—75360×24÷32+7302100-94+48×54(247+18)×27÷2536-720÷(360÷18)1080÷(63—54)×80(528+912)×5-6178 (10+120÷24)×5 2800÷ 100+789(947-599)+7×6436×(15-276÷23)(93+25×21)×9723-(521+504)÷25 (39-21)×(396÷6) 507÷13×63+498384÷12+3×31 [37—(7+6)]×30 16×[(17—8)÷3] 28×(5+96÷32)81÷[(72-54)×9] 57×12-560÷35848-640÷16×12960÷(1500-32×45)[192-(54+38)]×6 (12+24+80)×5032×(25+125)123×18-123×3+85×12325×(24+16)178×99+178 (140—70)×5463+84×2÷42490÷7+24×545+240÷1215×7+85×7 (46—20)×30—90 25×27×4(40-4)×25 2400÷80-14×2108-(83+360÷60)(420+48)÷(375-345)290-(34×3+99)142-54÷9+1475×4×2516×76-76×6720÷36÷299×53+53450-2×(16+9)245-(45+39)125×(8×4)×541×25—25420÷(205-198)×4 460÷(29-18÷3)(960-400)÷7026×6—11099×53+53450-2×(16+9)245-(45+39)125×(8×4)×541×25—25420÷(205-198)×4 460÷(29-18÷3)(960-400)÷7045+240÷12124+78+22 100—35—2543+315÷5426-279÷398—19×4+6251+121×784×3—136÷8(32+28)×6325÷13×(266-250)55+720÷(40-35 (220—180)÷836×(28÷7+23)(38+42)×(525÷35)(135—72)÷7721÷7×528×(246÷6-32)340-240÷20×5(58+12)×(96÷8) 106×6÷324÷8×30252÷4×3036×4+27×3(135-25)+40×618×(79-58)÷27(338+89-19)÷34 69×(800-700)÷525×4+32082÷2+5932÷8+1258×5+32÷481÷3+3×11135÷15+26107-35×3206×3-128÷4 (482—42)÷22—17 57÷3—12168÷12-48÷12 182÷13+208÷13525÷21—378÷2132×5×6—648+42÷6—12 60—(30÷3+3)31×13-228÷19(156+224÷32)×80 345÷(128-531÷9)776—(73×6+152)80÷2+100÷545-20×3÷4140—20×5+2520×30+20×4025×(30+10)800÷40-400÷40600÷(120÷60)(26+14)×70(26+14)×(70—40)90÷(30×15÷50)(35+45)÷(90—10)6×10—(21+29)25×(22+26×3)80÷(32+8)×300 3000—[(32+8)×30] 30×[169—(60+9)] 320—(120+25×4)36÷[(3+6)×2]180÷(36÷12)+6 450÷15+10×3(40+180÷30)×2(240+180)÷(30×2)800—800÷80×30800—(70×6+180) 65×(40+20×3) 36+360÷125×121+79×545×6+35×667×5—37×539×8-6×39326×78-326×68 120×90—110×90 125×(8+4)12×(40-5)5×27+63×564×9—14×9 23×134-34×23 68×48+68×52 48×101-4865×5+35×549×25×879×32+79×68 67×101-67256×7-56×7(75+25÷5)-40 2800÷25×4+80 (380-80×4)÷60 65×50+35×502×70+38×704×(25×65+25×28) 125×47-47×25340×(120-40÷8)120—36×4÷18+35 (58+37)÷(64—9×5)(80÷20+80)÷4360÷40+1040×20-200(80—25)×2(350-80)÷9360÷[(12+6)×5]288÷[(26-14)×8] 500×6—(50×2-80)(105×12-635)÷25 864÷[(27-23)×12](45+38-16)×24500-(240+38×6)[64-(87-42)] ×15 (845-15×3)÷1612×[(49-28)÷7]450÷[(84-48])÷12 (58+37)÷(64-9×5)95÷(64—45)178—145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)(284+16)×(512—18)120—36×4÷18+35(58+37)÷(64—9×5)704×2525×32×12588×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18—123×3+85×123 178×99+17879×42+79+79×577300÷25÷48100÷4÷7532000÷40021500÷12549700÷7004800÷252356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)(300+6)x1225x(4+8)125x(35+8)(13+24)x884x101504x2578x10225x20499×6499×13+1325+199×2578×4+78×3+78×3 125×32×825×32×12588×12572×125 99×999。
急需100道脱式简便计算题带答案和过程

急需100道脱式简便计算题带答案和过程1. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=10002. 1.25×(8+10)=1.25×8+1.25×10 =10+12.5=22.53.9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.24.1.24×8.3+8.3×1.76 =8.3×(1.24+1.76)=8.3×3=24.95.9999×1001=9999×(1000+1)=9999×1000+9999×1=6. 14.8×6.3-6.3×6.5+8.3×3.7=(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7=8.3×(6.3+3.7)=8.3×10=837. 1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.788. 933-157-43 =933-(157+43) =933-200 =7339. 4821-998=4821-1000+22=382310. 32×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 9048÷26=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷26=100+100+100+4 8=34811. 2881÷ 43=(1290+1591)÷43=1290÷43+1591÷43=30+37 =67 3.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4)=42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25]=42.3×(4×2.5) =42312. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.6513. 6.5×8+3.5×8-47 =52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32 =26.7614. 8×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4 =8/715. 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =2116. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.3=33.02-23.02=1017. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =018. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.819. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=87520. 61-(1.25+2.5×0.7)=61-3=5821. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=13.0522. 5.4÷1.8+240×1.5=3+360=36323. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=87524. 61-(1.25+2.5×0.7)=61-3=5825. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=3.0526. 408-12×24= 408 - 288= 12027. (46+28)×60= 74 x 60= 444028. 42×50-17 = 2100- 17 = 208329. 32+105÷5 = 32 + 21= 5330. 420×(327-238) = 420 x 89 = 3738031. (4121+2389)÷7 = 6510 ÷7 = 93032. 3.416÷(0.016×35)= 3.416 ÷0.56 = 6.133. 0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.1634. 5.67×0.2-0.62 = 1.134-0.62 = 0.51435.0.4×0.7×0.25 = 0.4 x 0.2 5 x 0.7 = 0.1 x 0.7 = 0.0736. 0.78+5.436+1 = 6.216 +1 = 7.21637. 30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 1038. [60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 12039. 2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.8640. 20×[(2.44-1.8)÷0.4+0.15] = 20x (0.64 ÷0.4+0.15)= 20x(1.6 +0.15) = 20 x1.75 = 3541. 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.642. 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5x7.1=35.543. 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.244.(31.8+3.2×4)÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.9245. 31.5×4÷(6+3) = 126 ÷ 9 = 1446. 2÷2.5+2.5÷2 = 0.8 + 1.25 =2.0547. 194-64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180-705×6 = 5180 - 4230=95048. 24÷2.4-2.5×0.8 =10 -2=849. 405×(3213-3189) =405x24 = 972059. 125×(97-81) =125x16 =200060. 6942+480÷3 = 6942 + 160 = 678261. 20+80÷4-20 = 20 + 20 -20 = 40 -20 = 2062. 100÷(32-30)×0 = 100 ÷2 x0= 50 x0 = 063. 25×4-12×5 = 100 - 60 = 4064. 70×〔(42-42)÷18〕=70 x (0÷18) = 70x0 = 065. 75×65+75×35 = 75 x (65 +35) = 75x100 = 750066. 6-1.6÷4= 6- 0.4 = 5.667. 5.38+7.85-5.37= 13.23 - 5.37=7.8668. 7.2÷0.8-1.2×5=9 - 6 =369. 6-1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 270. 6.5×(4.8-1.2×4)= 6.5 x(4.8 - 4.8 )=6.5 x0 = 071. 0.68×1.9+0.32×1.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.972. 10.15-10.75×0.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.1573. 5.8×(3.87-0.13)+4.2×3.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.474. 32.52-(6+9.728÷3.2)×2.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.9775.(136+64)×(65-345÷23)= 200x(65-15) = 200x50=1000076. 0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=100077. 1.25×(8+10) =1.25×8+1.25×10=10+12.5=22.578. 9123-(123+8.8) =9123-123-8.8=9000-8.8=8991.279. 1.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.980. 9999×1001 =9999×(1000+1)=9999×1000+9999×1 =81. 14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.782. 8.3×(6.3+3.7) =8.3×10 =8383. 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.7884. 933-157-43 =933-(157+43)=933-200=73385. 4821-998 =4821-1000+2=382386. I32×125×25=4×8×125×25 =(4×25)×(8×125)=100×1000 =10000087.9048÷268=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+ 2600÷26+1248÷269=100+100+100+48=34888. 2881÷ 43 =(1290+1591)÷434=1290÷43+1591÷43=30+3789. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.6590. 6.5×8+3.5×8-47 =52+28-47=80-4791. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.7692. 8×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/793. 2700×(506-499)÷900 =2700×7÷900 =18900÷900=2194. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02 =1095. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =096. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7=19.897. 4.1/27+505/2727+131313/272727=1/27+5*101/(27*101)+13*10101/(27*10101)=1/27+5/27+13/ 27=19/2798. 6.5×8+3.5×8-47 =52+28-47=80-4799. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76100. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65延展回答脱式计算即递等式计算,把计算过程完整写出来的运算,也就是脱离横式的计算。