题目内容
| (9.25-4.75)×4 | 0.691÷0.92+0.576÷0.92-0.267÷0.92 |
16.56
16.56
.分析:根据分数与除法的关系,化成除法算式,然后根据小数的简便方法计算即可.
解答:解:
=[(9.25-4.75)×4]÷[0.691÷0.92+0.576÷0.92-0.267÷0.92]
=(4.5×4)÷[(0.691+0.576-0.267)÷0.92]
=18÷(1÷0.92)
=18÷1×0.92
=18×(1-0.08)
=18-1.44
=16.56.
故填:16.56.
| (9.25-4.75)×4 |
| 0.691÷0.92+0.576÷0.92-0.267÷0.92 |
=[(9.25-4.75)×4]÷[0.691÷0.92+0.576÷0.92-0.267÷0.92]
=(4.5×4)÷[(0.691+0.576-0.267)÷0.92]
=18÷(1÷0.92)
=18÷1×0.92
=18×(1-0.08)
=18-1.44
=16.56.
故填:16.56.
点评:根据题意,化成除法算式,利用乘法分配律进行计算即可.
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