如题所述
第1个回答 2016-06-24
2.4x125=（2+0.4）x125=2x125+0.4x125=250+50=300
第2个回答 2016-06-24
2.4×125
=8x0.3x125
=8x125x0.3
=1000x0.3
=300
祝天天向上。本回答被网友采纳
=8x0.3x125
=8x125x0.3
=1000x0.3
=300
祝天天向上。本回答被网友采纳
第3个回答 2016-06-24
解：
2.4*125
=0.3*8*125
=0.3*1000
=300
2.4*125
=0.3*8*125
=0.3*1000
=300
