14.3﹣6.8=
0.25×8=
0.33-0.303=
0.125×=
2.4÷0.06=
6a×9a=
÷12=
1-+=
0.2× = ×4÷ ×4= ÷ =
16÷20%= 3.2+ - +3.2= × ×0=
(+)×9= 1.5×100= 99×0.8+0.8= 42=
+= 7﹣= ×= ÷=
1.2﹣ =
÷ =
×2.7=
1 ﹣0.8=
40×25%=
498+605≈
3.3+2=
1.6×5=
36.6÷6=
631÷72≈
905﹣260= =
= =
1.25×2.5×32= 8÷0.01=
808÷88≈ 697+296≈
平方米=平方分米 1立方米=立方米立方分米