如题所述
第1个回答 2016-05-24
125x56
=(100+25)x(60-4)
=100x60-100×4+25×60-25×4
=6000-400+1500-100
=7000
=(100+25)x(60-4)
=100x60-100×4+25×60-25×4
=6000-400+1500-100
=7000
第2个回答 2016-05-24
125x56
=125x（7x8)
=125x8x7
=1000x7
=7000本回答被提问者采纳
=125x（7x8)
=125x8x7
=1000x7
=7000本回答被提问者采纳
第3个回答 2020-06-10
125x56
=125x（7x8)
=125x8x7
=1000x7
=7000
=125x（7x8)
=125x8x7
=1000x7
=7000
第4个回答 2016-05-24
125x56
=125x8x7
=1000x7
=7000
=125x8x7
=1000x7
=7000
第5个回答 2016-05-24
我会追问
125x(7×8)
125×7+125×8
