2.5×4.4=2.5×4+2.5×0.4,應(yīng)用了乘法結(jié)合律.
×
×
分析:在計算2.5×4.4時,把4.4看作4+0.4,運用乘法分配律簡算.
解答:解:2.5×4.4,
=2.5×(4+0.4),
=2.5×4+2.5×0.4,
運用了乘法分配律;
故答案為:×.
點評:此題考查了乘法分配律的掌握與運用.
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