如题所述
第1个回答 2016-12-27
125x7x8x9
=125x8x7x9
=1000x63
=63000本回答被网友采纳
=125x8x7x9
=1000x63
=63000本回答被网友采纳
第2个回答 2016-12-27
125*7*8*9
=125*8(7*9)
=1000*63
=63000
=125*8(7*9)
=1000*63
=63000
第3个回答 2016-12-27
=125×8×7×9
=1000×7×9
=7000×9
=63000
望采纳
=1000×7×9
=7000×9
=63000
望采纳
第4个回答 2016-12-27
=125x8x(7x9)
=1000x63
=63000
=1000x63
=63000
