(6.3×5.6×10.5)÷(3.5×2.1×0.8)的简便算法

分类: 作业答案 • 2022-02-21 18:55:59

问题描述：

答

=(6.3÷2.1)×(5.6÷0.8)×(10.5÷3.5)
=3×7×3
=63

答

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