小数乘法计算题.doc

五年级小数乘法计算过关练习题

1、列竖式计算下面各题。

7.6×20.23×8.92.89×0.8

4.8×0.25125×0.087.37×2.6

9×67.33.14×160.37×5.6

2.6×123.14×256.69×0.3

36×3.145.43×0.90.4×72

0.72×5=2.05×4=12.4×7=

2.3×12=6.7×0.3=0.56×0.04=

6.5×8.4=3.7×4.6=0.29×0.07=

2.6×1.08=0.87×7=12.5×42=

0.37×0.4=1.06×25=0.6×0.39=

1.7×0.45=5.2×1.4=0.37×8.4=

0.86×1.2=2.04×0.15=21×2.84=

6.8×25=58×1.6=36×2.4=

2.06×3.7=1.56×0.08=1.03×5.3=

1.12×1.1=1.5×1.5=3.14×2.5=

0.5×2.33×81.5×1050.3×2.5×0.4

1.2×2.5+0.8×2.53.72×99+3.729.98×9.9

1.25×0.9×0.84×（6.3×2.5）6.4×0.25×12.5

2.5×16.7-2.5×0.71.08×9+1.080.39×199

3.14×0.68+31.4×0.0321.28×8.6+7.2×0.86

9.16×1.53-0.053×91.648×0.56+44×0.48

3、计算下面各题，并按要求保留积的小数位数。

（1）得数保留一位小数

0.6×0.90.57×0.860.8×0.31

3.58×20.563×0.8560.37×2.4

（2）得数保留两位小数

35.6×0.5066.728×3.234.3×0.23

2.18×3.64.23×0.8620.07×1.025

2.06×3.71.03×5.31.12×1.1