
1․- 14+6=20
20-100%
6-?
?=6.100/20
?=30%
2.-100-35=65
65-26
100%-?
?=100.26/65
?=40%
3.-100-25=75
75-27
100%-?
?=100.27
?=36%
4.-15.40/100=6
15+9=24
6.100/24=10%
5.- 40.20/100=8
40+10=50
8+10=18
18.100/50=36%
6.- 60.30/100=18
60+14+6=80
18+14=32
32.100/80=40%