(100:5)-8=20-8=12
(68+12):8=80:8=10
100-(30*3)=100-90=10
1) 100/5=20
20-8=12
2) 68+12=80
80/8=10
3) 30*3=90
100-90=10
(100:5)-8=20-8=12
(68+12):8=80:8=10
100-(30*3)=100-90=10
1) 100/5=20
20-8=12
2) 68+12=80
80/8=10
3) 30*3=90
100-90=10