=6.35×(9.8+0.2)
=6.35×10
=63.5
运用乘法分配律
解析第一步:把63.5缩小10倍,0.02扩大十倍,结果不变
望采纳谢谢
6.35×9.8+0.02×63.5
=6.35×9.8+0.2×6.35
=6.35x(9.8+0.2)
=6.35x10
=63.5
希望能帮到你!
解:原式=6.35x9.8+6.35x0.2
=6.35x(9.8+0.2)
=6.35x10
=63.5
6.35*9.8+0.02*6.35*10=
6.35*(9.8+0.2)=6.35*10=63.5
原式=6.35*9.8+6.35*0.2
=6.35*(0.2+9.8)=6.35*10=63.5。
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