①2(x+3)=46- (x-6)
② =
③2(x+3):5(x-2)=3:5
26×50=
12-0.86=
11-=
0.24÷6=
4÷=
24×(+)=
2.5×3.6×0.4=
96×0.4÷96×0.4=
4◯-4 20% -0.7575%%
25%+10x=0.8
50%x-30=12 60%x-25%x=14 20%x-4.3=2.7