0.45÷0.5=
1÷0.25=
2.3+4.75=
0.5×4÷0.5×4=
0.8×1.25=
3-2.45=
0.49÷0.07=
(5.8-4)÷3=
1-0.23= 7.5+3.5= 2.4×5= 8×0.4= 0.8+3.2=
22-2.5= 3.26×1000= 9.3+7= 7.3-0.6= 2+0.1-2+0.1=