北师大版三年级上册第四单元乘与除绿色圃中小学教育网÷2=12330×2=6060÷2=306÷2=36÷2=3006个十÷2=3个十30(根)答:平均每只小兔能得到30根胡萝卜。绿色圃中小学教育网绿色圃中小学教育网绿色圃中小学教育网÷8=1280×2=160160÷2=80160÷8=2016÷8=20016个十÷8=2个十20(次)答:需要运20次。42÷7=642÷7=642÷7=35÷5=35÷5=35÷5=00000006007707001.80÷4=204080÷8=102.算一算,说一说你是怎样想的。60÷3=200÷5=240÷8=120÷4=560÷7=900÷3=210÷3=270÷9=208040300307030303.夺红旗。4.5.填一填。⑴⑵×304080267×203601505200860801601802404802102805601001604012032050250400