24×0.5= += 6﹣6÷6= 20×20%=0.33= 7.2÷0.08= 4÷= 12.5×6.4=﹣= 121×=
20×=÷=
24×= 15÷=×=÷= 1÷25%=+= 3×÷3×50%=（1﹣1%）÷99%=
直接写得数×8× 81÷÷ 63÷×× 3×÷3× 36×25%
直接写得数．==== 8×3.14== 1÷75%==
0×=4= 21×==×3×8= 1=﹣== 2.5×=（）×20=
+
= 6﹣6÷6= 20×20%=
= 12.5×6.4=
﹣
= 121×
=
=
÷
=
= 15÷
=
×
=
÷
=
+
÷3×50%=（1﹣1%）÷99%=
×8
×
81÷
÷
×
×
3×
÷3×
=
=
=
=
= 1÷75%=
=
=
4= 21×
=
=
×3×8=
=
﹣
=
= 2.5×
=（
）×20=
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