| 4.2÷0.1= | 1.25×3= | 1÷0.01= | 1.25×0.8× = | - = |
+ = | 14÷3= | 0.25×4×0.93= | ( + )×8= | ×9-9× = |
| 解:4.2÷0.1=42, | 1.25×3=3.75, | 1÷0.01=100, | 1.25×0.8× = , | - = , |
+ = , | 14÷3= , | 0.25×4×0.93=0.93, | ( + )×8=6, | ×9-9× =27. |
分析:本题根据小数、分数乘法、除法及减法的运算法则计算即可;(
+
)×8、
×9-9×
=可根据乘法分配律计算.点评:完成此类题目要注意分析式中数据的特点,能简便计算的要简便计算.
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