Use 1.2.5.6.8.9 to combine equations with three or four symbols equal to 5

Use 1.2.5.6.8.9 to combine equations with three or four symbols equal to 5

（1+5+9）/5+2=5

Fill in the appropriate operation symbol between the three fives to make the equation hold
3 3 3 3 3 =0
3 3 3 3 3 =1
3 3 3 3 3 =2
3 3 3 3 3 =3
3 3 3 3 3 =4
3 3 3 3 3 =5

(3-3)*3*3*3=0
(3-3)*3+3/3=1
(3+3+3-3)/3=2
3+3+3-3-3=3
3-3+3/3+3=4
3/3+3/3+3=5

Add operational symbols or brackets to make the following equation true
1.1 2 3 4 =1
2.1 2 3 4 5 =1
3.1 2 3 4 5 6 =1
4.1 2 3 4 5 6 7=1
5.1 2 3 4 5 6 7 8 =1
6.1 2 3 4 5 6 7 8 9 =1

1 (1-2)*3+4=1
2 (12-3-4)/5=1
3 1+2+3-4+5-6=1
4 (12-34)+5*6-7=1
5 -[1+2*3+4-5-(6-7)-8]=1
6 -[(12/3+4)*5-6*7-8+9]=1