- 6 ○ 8 = 48, what is ○?
- 16 __ 4 = 4
- 8 ○ 4 = 4, what is ○?
- 7 __ 4 = 11
- 12 __ 2 = 10
- 72 ○ 8 = 9, what is ○?
- 7 ○ 4 = 28, what is ○?
- 7 ○ 5 = 35, what is ○?
- 60 ○ 6 = 10, what is ○?
- 9 __ 4 = 5
- 10 ○ 1 = 11, what is ○?
- 6 ○ 2 = 8, what is ○?
- 4 __ 9 = 13
- 6 __ 2 = 8
- 36 __ 9 = 4
- 1 __ 4 = 5
- 9 __ 9 = 81
- 27 ○ 3 = 9, what is ○?
- 11 ○ 10 = 1, what is ○?
- 12 __ 4 = 3