3.6×32+3.6×69-3.6=3.6×(32+69-1)運用了 A. 乘法交換律
B. 乘法結(jié)合律
C. 乘法分配律
C 分析:根據(jù)乘法分配律的意義可知,3.6×32+3.6×69-3.6=3.6×(32+69-1)運用了乘法分配律. 解答:3.6×32+3.6×69-3.6=3.6×(32+69-1)運用了乘法分配律. 故選:C. 點評:乘法分配律為:兩個數(shù)的和與一個數(shù)相乘,可先把它們與這個數(shù)分別相乘,再相加.
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