题目内容
计算:19×0.125+281×
-12.5=
1 | 8 |
25
25
.分析:根据乘法分配律进行简算即可.
解答:解:根据题意可得:
19×0.125+281×
-12.5,
=19×0.125+281×0.125-100×0.125,
=(19+281-100)×0.125,
=200×0.125,
=25.
故答案为:25.
19×0.125+281×
1 |
8 |
=19×0.125+281×0.125-100×0.125,
=(19+281-100)×0.125,
=200×0.125,
=25.
故答案为:25.
点评:本题主要考查乘法分配律的灵活运用,然后再根据题意进一步计算即可.
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