128×125×25×5需要简便计算法。

2024-11-22 11:49:57
推荐回答(4个)
回答1:

128×125×25×5
=(2x4x8x2)×125×25×5
=(8x125)x(4x25)x(2x5)x2
=1000x100x10x2
=2000000
运用乘法分配律、结合律之前,想到凑整。
希望能帮到你!

回答2:

回答3:

128×125×25×5
=(8×4×4)×125×25×5
=8×125×(25×4)×(4×5)
=1000×100×20
=200000

回答4: