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简便算法:八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六

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简便算法:八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六
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答案和解析
八又五分之三=8.6
八又五分之三乘二点七加六十二乘零点一四加三十五成零点八六
=8.6×2.7+62×0.14+35×0.86
=8.6×2.7+35×0.86+62×0.14
=0.86×2.7+35×0.86+62×0.14
=0.86×(27+35)+62×0.14
=0.86×62+62×0.14
=62×(0.86+0.14)
=62×1
=62