如题所述
第1个回答 2020-05-27
15×125×28
=15×125×4×7
=15×7×(125×4)
=105×500
=52500本回答被网友采纳
=15×125×4×7
=15×7×(125×4)
=105×500
=52500本回答被网友采纳
第2个回答 2020-05-27
15x125x28=15x（125x4）x7
=15x500x7
=7500x7
=52500
=15x500x7
=7500x7
=52500
第3个回答 2020-05-27
15X125X28
=15X125X8+15X125X20
=15X1000+300X125
=15000+37500
=52500
=15X125X8+15X125X20
=15X1000+300X125
=15000+37500
=52500
第4个回答 2020-05-27
l5x125X8×20
=15x20x(l25x8)
=3OOx1000
= 300000
=15x20x(l25x8)
=3OOx1000
= 300000
第5个回答 2020-05-27
