题目内容
| 20÷ | 1- | 2.4÷40%= | ||
| 1÷ | 6× |
| 解: | 20÷ | 1- | 2.4÷40%=6, | |
| 1÷ | 6× |
分析:
20÷
1-
1÷
6×
点评:本题考查了分数的乘除法的计算,注意运算法则和运算顺序,把结果化成最简分数.
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口算
| 3.14×20= | 1.25×8= | |||
| 25×0.4= | 36× | 75×10%= | 7× |
题目内容
| 20÷ | 1- | 2.4÷40%= | ||
| 1÷ | 6× |
| 解: | 20÷ | 1- | 2.4÷40%=6, | |
| 1÷ | 6× |
| 3.14×20= | 1.25×8= | |||
| 25×0.4= | 36× | 75×10%= | 7× |