11×40=
810÷30=
÷ =
20×498≈
9.8÷0.01=
2.05﹣0.5=
8×25%=
2﹣ =
÷5=
4.58+5.42=
7.6+2.4= 9.8﹣1.9= 1﹣35%= =
= 32×25%=