12÷0.9≈
12÷0.03=
25×40%=
2.4-2.4×0.5=
8×5÷8×5=
433-299=
0.25×0.04=
87÷8.7=
2 - 5%=
3.48+6.52=
4.2÷7=
÷ 5 =
×=
85-5.8=
1.2×0.5=
=
7÷70% =