16+x=71
x÷0.5=70
6x﹣8.7=5.4
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=
0.2÷0.02= 0÷0.2= 6.3÷0.09= 7.5÷0.5=
6÷12= 7.23×0.1= 3.2÷0.32= 6.06÷0.6=
x÷8=4.2 57﹣x=39 2x+3x=7.5