0.8小时= 分钟 0.06km2= ㎡46000hm2= km2 km2=500hm2= ㎡
横线上里最大填几？ 28× ＜150 ×73＜163 59× ＜400 ×95＜715．
× =1.5× =× =1．
× =5× = ×=7÷ =1．
在横线里填上适当的数． （90﹣60）× =150 408÷8+ =100 （960﹣60）÷ =5 ×（54﹣48）=726．
﹣ = ×=1．
× =1.5× =
× =1．
× =5× = ×
=7÷ =1．
= ×
=1．
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