7 * 7 − 5 = 44
7 * 8 + 4 = 60
7 * 9 + 7 = 70
5 * 6 − 8 = 22
54 : 6 − 4 = 5
49 : 7 + 5 * 6 = 37
63 : 7 + 16 = 25
32 : 4 + 43 = 51

Вычисления:
7 * ☐ − 5 = 44
44 + 5 = 7 * ☐
49 = 7 * ☐
☐ = 49 : 7
☐ = 7
 
☐ * 8 + 4 = 60
☐ * 8 = 60 − 4
☐ * 8 = 56
☐ = 56 : 8
☐ = 7
 
☐ * 9 + 7 = 70
☐ * 9 = 70 − 7
☐ * 9 = 63
☐ = 63 : 9
☐ = 7
 
☐ * 6 − 8 = 22
☐ * 6 = 22 + 8
☐ * 6 = 30
☐ = 30 : 6
☐ = 5
 
54 : ☐ − 4 = 5
54 : ☐ = 5 + 4
54 : ☐ = 9
☐ = 54 : 9
☐ = 6
 
☐ : 7 + 5 * 6 = 37
☐ : 7 + 30 = 37
☐ : 7 = 37 − 30
☐ : 7 = 7
☐ = 7 * 7
☐ = 49
 
63 : ☐ + 16 = 25
63 : ☐ = 25 − 16
63 : ☐ = 9
☐ = 63 : 9
☐ = 7
 
32 : ☐ + 43 = 51
32 : ☐ = 51 − 43
32 : ☐ = 8
☐ = 32 : 8
☐ = 4