妈妈要将2.5千克香油分装在一些玻璃瓶里，每个瓶最多可盛0.4千克。需要准备几个瓶子？
直接写出得数．+= ×= ÷6= ×8= +=2﹣= 0+= ÷= 1÷= ﹣=
直接写得数．+= 1﹣= 1÷= ﹣=9.6÷1.6= 0÷= 51×199≈ （+）×12=
直接写出得数30╳= ÷= 28╳= 1÷=+= 16÷= ﹣= ╳=
直接写出得数．0÷=0.3+=82+28=0.22×100=
直接写出得数．×4= ×= ÷= ××=1÷= 1÷= ×0.75= ×14+=1﹣= += ÷5= ÷×÷=
+
= 
×
= 
÷6= 
×8= 
+
=
= 0+
= 
÷
= 1÷
= 
﹣
=
+
= 1﹣
= 1÷
= 
﹣
=
= 51×199≈ （
+
）×12=
= 
÷
= 1÷
=
+
= 16÷
= 
﹣
= 
╳
=
=
=
×4= 
×
= 
÷
= 
×
=
= 1
÷
= 
×0.75= 
×14+
﹣
= 
+
= 
÷
×
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