7.2×50=
40÷50=
8.63-7.33=
2.8×1.5=
2.49÷0.3=
0.9×0.9=
24.3-13.4=
7÷0.5=
3.6÷0.36=
63=
- = + = 4÷3= + =
+ = 1- = 0.2²= - =
( )
( )