1.25×37.9+12.5×2.17+125×0.204=(简便运算)
1个回答
原式等于12.5×3.79+12.5×2.17+12.5×2.04
=12.5×(3.79+2.17+2.04)
=12.5×8
=100
相关问题
简便运算:17/25×5/37+8/25×17/37+17/37×2/25
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