用竖式计算，带☆的要验算．☆500﹣168= 906﹣389= ☆285+498= 42÷8= 75÷8= 46÷9=
直接写出得数． 0.77+0.33= 2÷0.02= 0.23=÷2÷=×=÷= 5﹣= 1﹣+=
直接写得数 1.2+8= 1.1﹣0.11=﹣= 0÷1= 12.5×8=×= （+）×24= 1÷×= ：=1 0.32=
用分数表示下面各个算式的商． 4÷5=，7÷5=，5÷7=，4÷3=
直接写出得数． 1÷0.25=+1=×24=+=﹣= 470×0.02= 10÷= 6×0= 3×﹣×3=
直接写出得数．========
÷2÷
=
×
=
÷
= 5﹣
= 1﹣
+
=
﹣
=
= 12.5×8=
×
=
+
）×24= 1÷
×
=1
+1
=
×24=
+
=
﹣
= 470×0.02=
= 6
×0= 3×
﹣
=
=
=
=
=
=
=
=
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