687x32x5x125x25x2用递等式计算?

2025-03-04 03:15:57
推荐回答(1个)
回答1:

简便计算
687x32x5x125x25x2
=687x4x8x5x125x25x2
=687x(2x5)x(4x25)x(8x125)
=687x10x100x1000
=687000000