7.2÷4=
5.01﹣1.8=
3.29×0.2=
12÷0.8=
2.3×7.2﹣7.2×1.3=
2.5×4=
4.8×1.25=
0.78÷0.2=
35×0.6÷0.7=
12.1﹣2.1×5=