用简便方法计算：37.5×7.1＋500×0.29 - 知识问答

用简便方法计算：37.5×7.1＋500×0.29＋1.1×12.5

1个回答

37.5×7.1＋500×0.29＋1.1×12.5
=（50-12.5）*7.1+50*2.9+1.1*12.5
=50*（7.1+2.9）-12.5*（7.1-1.1)
=500-12.5*6
=500-75
=425

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