72÷0.8= 48×12.5%= ÷ = 5.6÷0.07=
+ = × = 0.81÷9= 10-0.18=
3.14×9=
8.1÷0.3=
3.14×16=
60%×80%= × = 2- =
× ÷ × = 1+ - = 2÷2%=
8×12.5%= + - + = 1÷ × =
2.5×0.4= - = 63÷ = 1-0.75= + =
× = 10÷0.5= 281÷39≈ 40× = + =
72÷ = 3.1+5%= 1+ -=
0.42= 1.25×8= 6.7÷10%= 99×0.8+0.8=