125×25×3243×126-86×13的简便怎么算

2025-01-20 18:33:20
推荐回答(1个)
回答1:

125×25×32
=125x25x8x4
=(125x8)x(25x4)
=1000x100
=100000

43×126-86×13
=43x126-43x2x13
=43x(126-26)
=43x100
=4300