0.32=
- =
0.2×0.4=
1-0.09=
1÷×=
9.34+6.6=
×3÷×3=
1﹣ + = 1÷ × = 0.5﹣ +0.5﹣ =
8.1+ = ( + )×24= 7× ×7÷ =
9﹣0.9= 72÷0.4= 1.25×8=
3.14×8= 3²×3.14= 10×10%= 1÷ = 5÷ =
4- = + ×6= 1.25×0.4×8= × ÷ × =