五年级数学上册小数点乘除法计算题.doc

Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date五年级数学上册小数点乘除法计算题1、直接写出得数1、直接写出得数.0.45×2.5 0.8×1.25 0.3×3.6 0.3×0.3 10×0.07 0.3×1.4 0.05×7 0.92×0.4 0.2×0.26 0.14×4 0.02×0.1 1.2×0.30.2×0.4 8.21.8 10035.22 2.3×42.5×0.4 2.4×5 0.22×4 3.25×00.90.52 3.99×1 0×3.52 12.5×88÷10 = 10-1.8-7.2= 0.43+3.57= 2.5×4×12=0.9×0.8= 7.5x-3x = a+3a+7a= 1.05×100= 1÷0.5= 0.96÷3= 1.47÷0.7= 5.4÷6= 0.16.5×10= 0.56×100= 3.78×100= 4÷0.8 =3.215×100= 0.8×10= 4.08×100= 1.1×0.2 =0.6×0.8 = 3×0.9= 2.5×0.4= 3.6×0.4=12.5×8= 50×0.04= 80×0.3 = 1.1×9= 0.16×5 1.782.2 = 9.6÷0.6 = 1.2×0.5-0.4 = 0.7÷0.01 = 2.5×0.4 = 123.9= 1.25×8÷1.25 = 6.6÷0.66 = 5.37×0+4.63 = 3.92.03 4.2÷3.51.6+2.4×0.3 = 2.140.9 2745673= 0.3×0.3=7.22.8 0.9÷0.01 12÷0.3= 2.87÷0.713÷4 0.96÷0.3 1.5×0.4 7÷0.25 2.5×0.7×0.8= 82.5 16÷1.6 5.6×1.01= 8×（2.50.25） 0.360.64 64.32÷16 4.2÷0.172.8÷0.8 8.4÷4.2 13.89.9 2.4×2.50.05×0.8 2.560.37 1.25×0.8×0.5 12×2.5 1.23×3 3.2÷1.6 3.53.5×3 19.6÷2 8.8÷2.2= 0.75×4 （1.50.25）×4 0.5×0.8=8.4×0.2= 1.6×0.2 7.2×0.3= 2.8×0.3 0.9÷0.15= 1.8×0.4= 5.5÷0.55= 0.08×100= 2.2÷0.11= 5.464.54= 12.5×0.8= 0.35×0.3=1.4×5= 2.8×4= 19.6÷4= 22.5×4=2、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 8.4×1.3 6.4×0.5 4.48×0.4 5.25×5 35.4×4.2 0.042×0.54 0.76×0.32 0.25×0.046 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 16.12×9916.12 5.2×0.90.97.28×99+7.28 4.3×50×0.2 642.64×0.526×15.715.7×24 (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+1.58324.90.9 4.84.8×0.5 (1.250.125)×84.8×100.1 56.5×9956.5 7.09×10.80.8×7.094.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.4 12.5×0.4×2.5×8 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） 213.×0.×82576.81+6.81×99 0.25×185×40 4.4×0.83.4×0.8(9.37+937+937+937)× 25 42.×1.1.×1.752.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.12.5×(3.8×0.04) 7.69×101 3.8×10.1 0.25×39+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÷0.1252.75 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 7.5x3x=185×1.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2-