小数乘法计算题.doc

第一天
0.125×3.69×8 (2.5－0.25) ×4 8.59×101

0.36×15.7－0.36×13.7 5.64×1.28＋8.72×5.64 0.63×199

4.37＋99×4.37 10.1×38.67－3.867 8.63×25－0.063×250

9.3×10.1 0.99×0.81＋0.11×9×0.19 (5.23＋5.23＋5.23＋5.23) ×25

第二天
0.25×1.25×0.67×32 2.49×3.8＋0.249×62 1.25×3.2×0.25

15×9.7 0.25×8×2.12 （12.5－1.25）×8 5.7×18.34－57×0.834

3.87×4.12＋5.88×3.87 3.25×199 5.64＋99×5.64

第三天
列竖式计算 
 2.36×0.35               1.25×8.8             0.24×2.5             0.025×14  

 1.05×35               1.6×0.85             0.35×8.04               2.25×2.4  

 0.15×2.8             0.25×0.44               3.15×1.8               0.025×36

第四天
20.1×35.22－3.522 5.2×20.1 3.7×1.63－0.37×15.3

0.88×0.78＋0.11×0.22×0.8 2.5×(4.21＋4.21＋8.42) 12×19.8

4.34×0.25＋0.25×5.56＋0.025 7.56×101 1.25×2.5×1.2

5.4×11-5.4         10.7×16.1-15.1×10.7          8.9×1.01

第五天
列竖式计算 
4．6×5.4=         0.56×1.8=      3800×0.76=       0.25×0.0（保留两位小数）         

3．08×0.43 = 13.5×6.7 =1.08×25=       0.12×0.44（精确到十分位）  

1.7×0.45=        0.37×8.4=        2.15×6.4=         7.6×0.47 （精确到百分位）

第六天
3.72×3.5＋6.28×3.5        3.83×4.56＋3.83×5.44  4.8×10.1

(1.25－0.125)×8        15.6×2.1－15.6×1.1       3.6×102           0.39×199 

1 2.5×0.96×0.8      4.36×12.5×83.79－1.225－(3.775－6.21)

第七天列竖式计算 
0.09×67.3            0.25×6.88             0.037×5.06     2.03×0.14             

 20.4×2.6             205×0.13              0.32×0.14               2.4×0.96            

0.5×0.15              65×0.7                  0.0016×13            0.65×0.17    

0.004×6.5            0.93×290              6.69×0.3          76×8.03             

第八天
（1）3.2×12.5×25            （2）16.08×0.125        （3）99×73.2+73.2                 

19.43－(6.72＋1.43) 0.25×8.5×4     4.8×10.1    1.25×2.5×0.32

27.5×3.7－7.5×3.7  3.2×0.25×12.50.25×36   3.56＋4.54＋6.44＋5.46

(1.25－0.125)×8               3.6×102       0.39×199