= 0.3÷0.7= 32÷1%=
1-1%= 0.33= 756- 198=
1.85﹣+= 1÷×= +0.375=
2.4﹣= (+)×2.4= 5÷×5÷=
10×45%= 1.25×8= 40×(1﹣20%)=
2008× 8.8﹣6.75+9.2﹣0.25
0.99+0.1= 0.35× = 0.75÷75%= 3.14×82=
2.7- = ÷8= 15×6÷15×6= ÷ ×0=
1.2﹣ =
÷ =
×2.7=
1 ﹣0.8=
40×25%=
498+605≈
3.3+2=
1.6×5=
36.6÷6=
631÷72≈
27+68= 341﹣103= 270÷18= -=
2÷= 0.42×0.2= 3.5×50= ×=
+=
□○□ =□( )
□○□=□( )