1.25×0.79×16简便算法
问题描述:
1.25×0.79×16简便算法
答
1.25*8*2*0.79
=10*2*0.79
=15.8
答
1.25×0.79×16
=1.25x4x4x(0.8-0.1)
=20x(0.8-0.1)
=20x0.8+20x0.1
=16+2
=18
答
1.25×0.79×16
=1.25×8×0.79×2
=10×1.58
=15.8
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