小数计算题大全及答案解析_小数计算题大全及答案

时间:2023-03-22 20:42:43来源 : 互联网


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1、0.25×16.2×4 ( 1.25-0.125)×83.6×102 3.72×3.5+6.28×3.5 15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.095.6×2.93.77×1.80.02×965.22×0.39.99×0.024.67×0.95×2.441.666×6.19.432×0.0025.6×6.54.88×2.95.61×4.38.9×2.45.5×559.77×0.021.384×5.18.78×832.6×610.059×0.24.268×1.757×5.79.46×2.8517.8×6.41.5×4.92.5×0.885.555×5.22.22×3.337.658×8536.02×0.356.78×8除法:85.44÷1642.84÷7101.7÷967.5÷15230.4÷621.24÷360.736÷2343.5÷1235.21÷739.6÷246.21÷0.03210÷1.451.3÷0.2791.2÷3.80.756÷0.180.66÷0.311.97÷1.569.6÷2.938.4÷0.815÷0.06(循环小数的用简便方法,除不尽保留2位小数):8.2÷0.120.8÷0.976.4÷5.44.7÷31.25÷1.232÷4214.36÷2.78.33÷6.21.7÷0.032.41÷0.7用竖式计算0.396÷1.2= 0.756÷0.36= 15.6×13=0.18×15= 0.025×14= 3.06×36=0.04×0.12= 3.84×2.6≈ 5.76×3= (保留一位小数)7.15×22 90.75÷3.3 3.68×0.2516.9÷0.13 1.55÷3.9 3.7×0.01613.76×0.8= 5.2×0.6 8.4×1.36.4×0.5 4.48×0.4 5.25×535.4×4.2 0.042×0.54 0.76×0.320.25×0.046 2.52×3.4 1.08×25 0.12×0.5×0.16= 4.8×0.25= 0.125×1.4≈(保留两位小数)2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)3、脱式计算(能简算的要简算)2.5×7.1×4 16.12×99+16.12 5.2×0.9+0.97.28×99+7.28 4.3×50×0.2 64-2.64×0.526×15.7+15.7×24 (2.275 +0.625)×0.28 3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.88.9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.46 8.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+1.5832+4.9-0.9 4.8-4.8×0.5 (1.25-0.125)×84.8×100.1 56.5×99+56.5 7.09×10.8-0.8×7.094.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.412.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101 0.68 ÷(5.2 -3.5)× 1.25 40.5 ÷ 0.81 × 0.18 4.8 ×(15 ÷ 2.4) 6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.8(9.37+9.37+9.37+9.37)× 2.5 2.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.12.5×(3.8×0.04) 7.69×101 3.8×10.10.25×39+0.25 0.125×72 46×0.33+54×0.33(8×5.27) ×1.25 6.81+6.81×99 0.25×185×406.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.29.5×99 13.5×0.98 12.5×8.8二、解方程:54-X=24 7X=49 126÷X=4213+A=28.5 2.4X=26.4 7.5x-3x=185×1.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2x+3.86=5.4617.89-x=12.8940.8+x=57.3x-3.25=162x+0.82=8.23+0.5x=77.8÷x=2.680x÷4=125-0.9x=2.752x+0.4x=486-2x+6x=1835x+13x=9.60.52×5-4x=0.60.7(x+0.9)=421.3x+2.4×3=12.43.5x = 1402x +5 = 4015x+6x = 1685x+1.5 = 4.513.7—x = 5.294.2 × 3—3x = 5.1 (写出检验过程)20.5-4x=8.13.6x÷1.2=9.7518×1.5-1.7x=13.418.5x-9.9x=1.7219.2x+1.5x=32.17.2×5-8x=11.24x+3×0.7=6.5(口算)0.6×1.2= 0.84÷0.6= 4.5×0.1=15×0.4= 0.1×0.5= 2.8÷7=100÷0.01= 1.4×3= 0.72÷8=6÷0.03= 0.5×0.6= 40×0.9=4÷0.5= 7×2.1= 8.89+0.1=24×0.25= 0.1÷0.01= 2.4×0.8=9×0.4= 10×0.01= 30.2-3.02=4.3-0.25= 1-0.82= 9.6÷0.3=2.6×0.01= 0×25.4= 4.8×0.4=7.2+2.8=12×2.5=2.63+0.37=0.7×16-16×0.2=0.96÷0.3=1.5-4.5=2.5×0.41.4×2.5×4=8-2.5=6÷1.2=9.2÷2.3=24÷4+56÷4=0.36+0.64=4÷0.25=1.8×5=30×(200+3)=8.4÷4.2=8×1.5=4.8÷0.3=2.73+1.5×4=计算下面各题(能简算的要简算)7.05×23.7+7.05×76.30.125×3.2×2.512.81-(1.5+7.81)8.7×2.6+6.4×8.7+8.71025-1125÷4.5×3.612.25-3.1+0.85-6.17(1.9-1.9×0.9)÷(3.8-2.8)2.65×1.7+1.35×1.7列竖式计算,得数保留一位小数。

2、1.2×1.4= 0.37×8.4= 3.14×2.8=0.85×1.12= 0.86×5.4= 0.15×2.34=40÷14= 26.37÷31= 45.5÷38=1560÷35= 4.8÷2.3= 1.55÷3.9=7.2÷2.1= 3.87÷7= 146.4÷13=5.63÷6.1= 2.84×0.03= 0.38×0.13=26.37÷31= 32÷42= 2.84×0.03=4.8÷23= 0.382×0.13= 4.2÷4.5=列竖式计算1.64+2.35= 8.65-6.31= 28.448÷14= 0.58×250= 12.5+3.6= 10.88÷34= 10-7.64= 1.86×7= 13.88-6.29= 926×0.15= 8÷500= 26.3+7.93= 23×7.06= 100.2-2.28= 44÷9(精确到百分位) 三、计算(能简便的用简便方法计算)8×25×1.25×16 4.04×250 45.55-(6.82+15.55) 3.2×99+3.2 4.8×39+61×4.8 34.52-17.87-12.232.5×56+4.5×65 489×101-489 4.57+3.17+3.43+5.83 4.6×56+48×4.6-4.6×4竖式计算:18÷24= 43.68÷26= 25.3÷0.88=0.1575÷3.15= 0.612÷1.8= 16.787÷0.28 (保留一位小数) 算下面各题2.36×0.22 2.8×4.58 3.57÷4.2 82.8÷3645×2.46 3.6÷0.24 382.5÷45 6.4×5.482、 简便计算3.6×2.5+7.5×3.6 2.5×1.2 0.125×32 4.3×0.9 6.5×102 3.25×99+3.2518÷24= 43.68÷26= 25.3÷0.88=0.1575÷3.15= 0.612÷1.8= 16.787÷0.2817×40=680 100-63=37 3.2+1.68=4.88 2.8×0.4=1.1214-7.4=6.6 1.92÷0.04=48 0.32×500=160 65+4.35=69.3510-5.4=4.6 4÷20=0.2 3.5×200=700 1.5-0.06=1.440.75÷15=0.05 0.4×0.8=0.32 4×0.25=1 36+1.54=37.541.01×99=99.99 420÷35=12 25×12=300 135÷0.5=2700.51÷17=0.03 32.8+19=51.8 5.2÷1.3=4 1.6×0.4=0.644.9×0.7=3.43 1÷5=0.2 6÷12=0.5 87-0.49=86.5117×40=480 100-63=37 3.2+1.68=4.88 2.8×0.4=1.1214-7.4=6.6 1.92÷0.04=48.75 0.32×500=160 65+4.35=69.3510-5.4=4.6 4÷20=0.2 3.5×200=700 1.5-0.06=1.440.75÷15= 0.4×0.8= 4×0.25= 0.36+54=1.01×99= 5÷35= 25×12= 135÷0.5=0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=4.9×0.7= 1÷5= 6÷12= 87-0.49=17×40= 100-63= 3.2+1.68= 2.8×0.4=14-7.4= 1.92÷0.04= 0.32×500= 0.65+35=10-5.4= 4÷20= 3.5×200= 1.5-0.06=0.75÷15= 0.4×0.8= 4×0.25= 0.3+1.54=1.1×99= 20÷35= 25×12= 135÷0.5=只有100道,在网上有更多的题,可以查找。

3、  23×40= 54÷3= 18×30= 60÷30= 70×50= 250÷50= 14×60= 80÷40= 18×50= 16×30= 640÷80= 15×5=  23×3= 12×2×5= 480÷80= 16×5= 27×3= 90÷15=  48÷4= 640÷16= 39÷3= 24×20= 32×3= 48÷16=  12×8= 27×3= 56÷14= 24÷8= 14×2= 83-45=  560÷80= 96÷24= 40÷20= 40×30= 30×23= 12×8= 4500×20= 120×600= 200×360= 6800×400= 4×2500= 6000÷40= 5×1280= 400×14= 1000÷25= 160×600= 20×420= 290×300= 8100÷300= 7600÷200= 7600÷400= 980÷14= 4200÷30= 6×1300= 1300×50= 200×48= 9200÷400= 840÷21= 180×500= 8000÷500= 1900÷20= 200×160= 8700÷300= 300×330= 3×1400= 7000÷14= 600÷12= 9600÷80= 140×300= 8800÷40= 9600÷800= 5×490=  760×20= 7500÷500= 370×200= 650÷13= 240×4= 640÷80=  15×10= 160×30= 250×6= 125×8= 48×20= 6600÷600=  11×80= 24×50= 3600÷400= 4000÷50=  320X5= 120X8= 9X470= 310X5= 6X150= 390X5=  6X270= 270X2= 940X3= 700X8= 4X280= 6X660=  2X880= 6X230= 8X800= 7X210= 860X6= 6X930=  480X9= 6X280= 240X3= 7X130= 2X450= 9X390=  9X780= 270X5= 5X690= 790X6= 720X9= 8X920=  4X980= 340X7= 4X710= 8X730= 900X2= 170X9=  9X970= 4X590= 3X860= 290X4= 7X630= 960X7=  小数加减法口口算  5.5+6.0= 5.2+4.8= 4.1+2.8= 3.2+3.3= 6.4+2.9= 3.4+1.6=  5.2+4.8= 8.1+2.1= 0.8+1.3= 1.2+1.6= 1.7+7.2= 6.8+9.1=  3.4+5.5= 0.8+5.1= 3.4+1.8= 1.1+3.5= 4.6+8.1= 4.5+1.2=  9.0+7.6= 1.9+3.4= 4.5+5.5= 5.6+5.4= 7.3+1.7= 0.9+3.5=  5.3+6.4= 4.6+7.8= 1.2+4.3= 4.2+2.1= 3.7+3.2= 1.4+2.4=  8.1+0.5= 0.3+3.2= 6.3+2.5= 4.6+1.4= 3.5+7.3= 9.8+4.5=  0.9+0.8= 0.5+0.3= 3.5+7.8= 1.1+12= 5.6+7.6= 3.4+1.9=  4.5+2.3= 5.7+8.4= 1.8+0.9= 5.8+9.8= 1.3+5.7= 8.9+4.5=  1.6+0.5= 4.5+7.5= 3.6+6.2= 6.5+6.1= 3.5+7.6= 7.5+7.1=  0.7+4.3= 5.1+0.5= 5.3+5.1= 7.8+2.4= 4.5+7.1= 4.1+7.2=  0.9+0.6= 9.7+8.6= 8.6+4.3= 0.9+4= 2.6+3.5= 6.7+1.4=  6.3+6.2= 6.3+5.1= 8.9+0.3= 5.5+1.7= 8.7-3.5= 3.2-2.1=  8-3.2= 10.2-6.2= 6-0.4= 8.3-7= 4.7-4.3= 8.2-5.2=  2.6-0.8= 4.7-2.5= 8.4-0.6= 5.7-3.7= 1-0.9= 3.5-1.3= 3.5-3.4= 9.7-5.4= 4.3-1.4= 7.1-0.2= 8.2-6.8= 6.9-2.5= 2.1-1.7= 6.8-2.9= 4.3-1.2= 6.9-1.2= 3.9-0.8= 1.5-0.8=  5.1-3.4= 3.4-2.3= 6.7-3.1= 8.3-3.3= 8.8-3.2= 12.3-4.5=  5.1-0.9= 1.2-0.3= 4.2-0.1= 7.8-3= 2.2-0.6= 8.9-5.4=  2.7-1.2= 8.5-7.6= 5.2-0.9= 6.2-2= 8.4-6.2= 6.3-4.1=  3.2-1.9= 7.1-5.4= 9.8-5.4= 8.4-4.2= 3.8-0.2= 7.9-0.1=8.32÷4= 5.92÷1.6= 0.63÷0.15= 140.4÷18= 9.18÷9= 243.2÷6.4= 7÷0.28= 15.6÷2= 0.138÷0.15= 216÷2.7= 6.4÷32= 104÷0.52= 72÷3.8= 75.6÷1.8= 8.91÷0.27= 2.6÷0.13= 0.21÷1.4= 1.12÷0.56= 7.35÷2.1= 19.8÷45= 1÷0.025=2.5×103= 0.702×15= 3.15×0.14= 12.4×0.17= 2.3×11.2= 3.9×0.3= 4.3×6.2= 58×0.009= 6.7×0.3= 0.68×0.04= 3.9×5.6= 0.285×7= 6.15×0.4= 56×1.33= 3.02×2.05= 2.6×1.8= 0.8×7= 3.5×1.6= 12.5×40= 1.3×2.3= 1.37×0.04= 1.06×2.05= 7.03×8.6= 7.6×0.19=。

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