题目内容
(2.8+0.8)×0.25=2.8×0.25+0.8×0.25的计算过程运用了
乘法分配律
乘法分配律
.分析:(2.8+0.8)×0.25可以根据乘法分配律进行简算,然后再进一步解答.
解答:解:
(2.8+0.8)×0.25,
=2.8×0.25+0.8×0.25,
=0.7+0.2,
=0.9;
所以,(2.8+0.8)×0.25=2.8×0.25+0.8×0.25的计算过程运用了乘法分配律.
故答案为:乘法分配律.
(2.8+0.8)×0.25,
=2.8×0.25+0.8×0.25,
=0.7+0.2,
=0.9;
所以,(2.8+0.8)×0.25=2.8×0.25+0.8×0.25的计算过程运用了乘法分配律.
故答案为:乘法分配律.
点评:完成本题要注意分析式中数据,选择合适的运算定律进行解答.
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