如题所述
简便算法过程如下
61×71-61×61
=61×(71-61)
=61×10
=610
采用乘法分配率逆运用!希望可以帮到你
61×71-61×61
=61×(71-61)
=61×10
=610
采用乘法分配率逆运用!希望可以帮到你
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第1个回答 2022-09-04
按表达式的意思解读
有公因式61,所以我们可以提取公因式61
61×71-61×61
=61×(71-61)
=61×10
=610
有公因式61,所以我们可以提取公因式61
61×71-61×61
=61×(71-61)
=61×10
=610
第2个回答 2022-09-04
61X71—61X61
=61X(71—61)
=61X10
=610
=61X(71—61)
=61X10
=610
第3个回答 2022-09-04
61X71—61X61
=61*(71-61)
=61*10
=610
=61*(71-61)
=61*10
=610