如题所述
第1个回答 2017-01-07
解:根据拆分法和结合律的运用,
原式=(3x8)x125x12
=(3x12)x(8x125)
=36x1000
=36000
原式=(3x8)x125x12
=(3x12)x(8x125)
=36x1000
=36000
第2个回答 2017-01-07
24乘(125乘12)
=24X125X12
=3X8X125X12
=3X12X8X125
=36X1000
=36000本回答被网友采纳
=24X125X12
=3X8X125X12
=3X12X8X125
=36X1000
=36000本回答被网友采纳
第3个回答 2017-01-07
24x(125x12)
=4x6x5x25x12
=(4x25)x12x(6x5)
=100x12x30
=36000
=4x6x5x25x12
=(4x25)x12x(6x5)
=100x12x30
=36000