12.5+0.5=
8.4÷4=
4.5÷0.9=
0.125×8÷0.125×8=
1.2×5=
0.25×8=
12.5÷2.5=
12×0.15-2×0.15=
0.22÷0.22=
4.2×0.4=
30.7×0.05=
8.77×10÷100=