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82问答网 > (15.4-7.8)乘以3.5运用了什么律？

(15.4-7.8)乘以3.5运用了什么律？

2025-04-04 11:23:07

推荐回答（4个）

回答1：

应该是由15.4*3.5-7.8*3.5而来

运用了乘法结合律

回答2：

楼主您是说这个式子要运用什么律算吗？如果是解题可以用乘法分配律，如果是这个式子就是合并同类项（也可以是乘法分配律的逆运算或逆运用）

回答3：

(15.4-7.8)×3.5运用乘法分配律

回答4：

(15.4-7.8)×3.5
=7.6×3.5
=26.6
先算括号里的

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