“‘25乘37乘4125乘7乘8”用简便计算怎么算?

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“‘25乘37乘4125乘7乘8”用简便计算怎么算?

“‘25乘37乘4125乘7乘8”用简便计算怎么算?
“‘25乘37乘4125乘7乘8”用简便计算怎么算?

“‘25乘37乘4125乘7乘8”用简便计算怎么算?
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

25×37×4125×7×8
=(25×33×125×7×8)×(36+1)
=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