Răspuns :
1. 12 * 5 = 60
60 : 5 = 12
61 : 5 = 12 rest 1
62 : 5 = 12 rest 2
63 : 5 = 12 rest 3
64 : 5 = 12 rest 4
2. 7 * 1 + 1 = 9
9 : 7 = 1 rest 1
7 * 2 + 2 = 16
16 : 7 = 2 rest 2
7 * 3 + 3 = 24
24 : 7 = 3 rest 3
7 * 4 = 4 = 32
32 : 7 = 4 rest 4
7 * 5 + 5 = 40
40 : 7 = 5 rest 5
7 * 6 + 6 = 48
48 : 7 = 6 rest 6
60 : 5 = 12
61 : 5 = 12 rest 1
62 : 5 = 12 rest 2
63 : 5 = 12 rest 3
64 : 5 = 12 rest 4
2. 7 * 1 + 1 = 9
9 : 7 = 1 rest 1
7 * 2 + 2 = 16
16 : 7 = 2 rest 2
7 * 3 + 3 = 24
24 : 7 = 3 rest 3
7 * 4 = 4 = 32
32 : 7 = 4 rest 4
7 * 5 + 5 = 40
40 : 7 = 5 rest 5
7 * 6 + 6 = 48
48 : 7 = 6 rest 6