72x125x4怎样简算
原式
=(36x2)x125x4
=36x(2x125x4)
=36x(8x125)
=36x1000
=36000
或者
=(8x9)x125x4
=(8x125)x9x4
=1000x9x4
=9000x4
=36000
=(36x2)x125x4
=36x(2x125x4)
=36x(8x125)
=36x1000
=36000
或者
=(8x9)x125x4
=(8x125)x9x4
=1000x9x4
=9000x4
=36000
温馨提示:答案为网友推荐,仅供参考