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1.25×17.5+36.1÷0.8+2.64×12.5=简便运算
人气:388 ℃ 时间:2019-12-27 17:14:23
解答
1.25×17.5+36.1÷0.8+2.64×12.5
=1.25×17.5+36.1×1.25+26.4×1.25
=1.25×(17.5+36.1+26.4)
=1.25×80
=100
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