3x-1.2=10.8
6.2x+x=14.4
3(x+0.2)=0.96
0.25÷2.5=
1.25×0.8=
3.9÷0.1=
3.6-3.6÷9=
0.24×0.5=
3.6+4=
0.32-0.02=
0.25×4÷0.25×4=
m
12
24
n
5
△