1)
36 : 3
82 : 2
42 : 3
78 : 6
30 : 2
74 : 2
65 − 64 : 8 * 3
9 * (14 − 9) − 8
2)
☐ : 8 = 0
☐ * 8 = 0
17 * ☐ = 17
17 + ☐ = 17
24 : ☐ = 24
24 − ☐ = 24
36 : 3 = (30 + 6) : 3 = 30 : 3 + 6 : 3 = 10 + 2 = 12
82 : 2 = (80 + 2) : 2 = 80 : 2 + 2 : 2 = 40 + 1 = 41
42 : 3 = (30 + 12) : 3 = 30 : 3 + 12 : 3 = 10 + 4 = 14
78 : 6 = (60 + 18) : 6 = 60 : 6 + 18 : 6 = 10 + 3 = 13
30 : 2 = (20 + 10) : 2 = 20 : 2 + 10 : 2 = 10 + 5 = 15
74 : 2 = (60 + 14) : 2 = 60 : 2 + 14 : 2 = 30 + 7 = 37
65 − 64 : 8 * 3 = 65 − 8 * 3 = 65 − 24 = 41
9 * (14 − 9) − 8 = 9 * 5 − 8 = 45 − 8 = 37
☐ : 8 = 0
☐ = 0 * 8
☐ = 0
☐ * 8 = 0
☐ = 0 : 8
☐ = 0
17 * ☐ = 17
☐ = 17 : 17
☐ = 1
17 + ☐ = 17
☐ = 17 − 17
☐ = 0
24 : ☐ = 24
☐ = 24 : 24
☐ = 1
24 − ☐ = 24
☐ = 24 − 24
☐ = 0