Find out the missing number
2 3 1 2 3 4 4 5 5 6 6 7 30 43 51 ?
The answer is 64 . Maybe
Find the missing number. 3 2 = 7, 5 4 = 23, 7 6 = 79, 10 9 = ?
If 4 + 1 = 53 3 + 2 = 51 4 + 3 = 71 5 + 2 = 73 then 6 + 3 =?
