(425乘5775+4225乘425)÷125÷8

分类: 作业答案 • 2021-12-20 11:57:46

问题描述：

(425乘5775+4225乘425)÷125÷8
怎么简便算?

答

(425×5775+4225×425)÷125÷8
=(425×25×231+169×25×425)÷125÷8
=425×25×(231+169)÷125÷8
=425×25×400÷125÷8
=425×25×400÷(125×8)
=425×10000÷1000
=425×10
=4250