“‘25乘37乘4125乘7乘8”用简便计算怎么算?

分类: 作业答案 • 2023-01-21 21:20:43

问题描述：

答

25×37×4125×7×8
=25×36×125×33×7×8+25×125×33×8×7
=900×1000×33×7+1000×25×32×7+1000×25×7
=29700000×7+5600000×7+25000×7
=30525000×7
=213675000