53%-27%=
1÷2%=
3000×20%×10%=
50%÷=
-80%=
×3+20%=
40%+1.4=
2×80%=
60÷25%=
1.5+70%=
24×0.5= 7.2÷0.08= 36×75%= 4÷9=
÷ = - = + × = + - + =
3×23%=
0.2÷20%=
45.5%×10=
3.14×8=
905-598= 0.3+7= 0.72÷0.6= 6÷7= 0.45×6×0.5=
÷ = + = 4÷ ×9= × = × ÷ × =
÷ =
-=
×=
2÷=
÷6=
2×=
:=
8.4÷4.2=
10÷1%=
1÷3×=
0÷×14=
1÷0.25= += ×24= +=
﹣= 470×0.02= 10÷= 6×0=