小数脱式计算.doc

（一）小数加减法计算
3.2＋0.36＋4.8＋1.64          0.456＋6.22＋3.78         6.9＋4.8＋3.1 
1.29＋3.7＋2.71＋6.3          0.398+0.36+3.64           4.02＋5.4＋0.98 
73.8－1.64－13.8－5.36       7.14－0.53－2.47           5.17－1.8－3.2
35.6－1.8－15.6－7.2          66.86－8.66－1.34          36.8－3.9－6.1
7.85＋2.34－0.85＋4.66     13.35－4.68＋2.65       9.6＋4.8－3.6 
5.27＋2.86－0.66＋1.63     3.68＋7.56－2.68        47.8－7.45+8.8 
 3.82＋2.9＋0.18＋9.1          1.27+3.9+0.73+16.1        1.57+0.245+7.43 
2.64＋8.67＋7.36＋11.33       0.134+2.66+0.866          1.76+0.195+3.24
23.4－0.8－13.4－7.2         15.02-6.8-1.02             8－2.45－1.55
3.25＋1.79－0.59＋1.75     1.23＋3.4－0.23＋6.6         7.5＋4.9－6.5     
（二）小数乘除法计算
0.25×16.2×4               320÷1.25÷8            3.9÷（1.3×5）
3.52÷2.5÷0.4             9.6÷0.8÷0.4           2.5×2.4 
3.2×0.25×12.5            15÷（0.15×0.4）       2.7÷45 
8.54÷2.5÷0.4             0.25×0.73×4           4.6÷3.5 
（二）小数乘除法计算 
0.8×（4.3×1.25）         4.36×12.5×8           0.25×0.73×4        
320÷1.25÷8               17.8÷(1.78×4)         4.5÷1.8        
12.5×0.96×0.8            1.25×2.5×32            4.9÷1.4    
0.35×（1.25×2）×0.8      63.4÷2.5÷0.4          0.25×36
3.2×0.25×12.5             12.5×0.96×0.8           4.2÷3.5       
15.2÷0.25÷4              1.25×2.5×32           0.49÷1.4       
18－1.8÷0.125÷0.8        930÷0.6÷5             70÷28       
2.31×1.6×0.5×1.25             0.25×8.5×4            15÷0.25       
5.6÷1.25÷0.8÷2.5÷0.4         0.125×16.2×16
小数简便计算练习四 
7.09×10.8－0.8×7.09     3.72×3.5＋6.28×3.5    27.5×3.7－7.5×3.7       
3.83×4.56＋3.83×5.44    3.9×2.7＋3.9×7.3      7.6×0.8＋0.2×7.6       
乘法分配律的运用二 
3.14×0.68＋31.4×0.032    32.4×0.09＋0.1×3.24    1.28×8.6＋7.2×86        
2.3×16+2.3×22+23×0.2    9.16×15－0.5×91.6      101×0.87-0.91×87    
乘法分配律的运用三 
28.6×101－28. 6           1.87×9.9＋0.187            58.5×81-8.5      
(45.9－32.7)÷8÷0.125       (1.25－0.125)×8       （2.5－0.25）×0.4        
乘法分配律的运用四 
0.8×100.1                 0.79×199        0.85×19 93.65×10.1       4.6×102       0.65×101 
7.74×（2.8－1.3）＋1.5×2.26                  46×57＋23×86          
  5.8×4.8＋4.8×4.2      6.12×1.25-2.12×1.25       
7.09×10.8－0.8×7.09       7.24×5.2＋2.76×5.2      36.7×3.7－3.7×6.7 
0.89×100.1                0.85×9.9               0.32×403      
4.8×10.1                   4.96×25               8.9×1.01      
0.279×343＋6.07×27.9+5×2.79              7.2×0.2＋2.4×1.4          
14.23×12.3-1.423×22-1423