(6.3×5.6×10.5)÷(3.5×2.1×0.8)的简便算法

问题描述:

(6.3×5.6×10.5)÷(3.5×2.1×0.8)的简便算法

(6.3×5.6×10.5)÷(3.5×2.1×0.8)
=6.3÷2.1x5.6÷0.8x10.5÷3.5
=3x7x3
=63