7.35×3.2+2.65×3.2=(7.35+2.65)×3.2應(yīng)用了乘法分配律.
.(判斷對(duì)錯(cuò))
分析:兩個(gè)數(shù)的和與一個(gè)數(shù)相乘,等于把兩個(gè)數(shù)分別同這個(gè)數(shù)相乘,再把兩個(gè)積相加(或相減).用字母表示:
a×(b+c)=a×b+a×c,在計(jì)算7.35×3.2+2.65×3.2時(shí),運(yùn)用了乘法分配律簡算.
解答:解:7.35×3.2+2.65×3.2=(7.35+2.65)×3.2,應(yīng)用了乘法分配律.
故答案為:√.
點(diǎn)評(píng):此題考查了學(xué)生對(duì)乘法分配律的掌握與運(yùn)用.
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