题目内容
计算:19×0.125+281×
+12.5= .
1 | 8 |
分析:根据乘法分配律进行简算.
解答:解:19×0.125+281×
+12.5
=19×0.125+281×0.125+100×0.125
=(19+281+100)×0.125
=400×0.125
=50.
故答案为:50.
1 |
8 |
=19×0.125+281×0.125+100×0.125
=(19+281+100)×0.125
=400×0.125
=50.
故答案为:50.
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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