
1.25x2.5x0.8x2.5的简便计算
2个回答
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解:简便计算过程如下
1.25×2.5×0.8×2.5
=1.25×0.8×2.5×2.5
=1×2.5×2.5
=2.5×(2+0.5)
=2.5×2+2.5×0.5
=5+1.25
=6.25
1.25×2.5×0.8×2.5
=1.25×0.8×2.5×2.5
=1×2.5×2.5
=2.5×(2+0.5)
=2.5×2+2.5×0.5
=5+1.25
=6.25
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