1)
12:1=12
24:2=12
36:3=12
2)
19 + 1 : 1=20
18 + 2 : 1=20
3)
120-60*1=60
80-20*1=60
1.
24/2=12
36/3=12
2.
14 + 12 / 2 = 20
11 + 27 / 3 = 20
3.
100 - 8 * 5 = 60
64 - 1 * 4 = 60
