小学五年级下学期知识与能力训练33页：购买那种包装的牛奶便宜？

显示全部楼层 · 2012-4-24 17:52:11

250ml / 1.5 =166.66666666......400ml / 2.2 =181.81818181......500ml / 2.5 =200答 500ml的便宜...

千问 · 2012-4-24 17:52:11

250ml / 1.5 =166.66666666......（ml）400ml / 2.2 =181.81818181......（ml）500ml / 2.5 =200(ml)答 500ml的便宜...

千问 · 2012-4-24 17:52:11

250ml / 1.5 =0.16666666666......元400ml / 2.2 =0.18181818181......元500ml / 2.5 =0.2元答 500ml的便宜...

千问 · 2012-4-24 17:52:11

1.5/250=0.006（元）2.2/400=0.0055(元)2.5/500=0.005（元）500ML的便宜...