
9.1×5.3×0.7怎么简便计算?
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回答:
9.1×5.3×0.7
=9.1×0.7×5.3
=6.37×5.3
=6.37×(5+0.3)
=6.37×5+6.37×0.3
=31.85+1.911
=33.761
运用了乘法分配律
9.1×5.3×0.7
=9.1×0.7×5.3
=6.37×5.3
=6.37×(5+0.3)
=6.37×5+6.37×0.3
=31.85+1.911
=33.761
运用了乘法分配律
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