If 44 = 4, 66 = 6 and 99 = 9 then 57 = _____?
If 44 = 4, 66 = 6 and 99 = 9 then 57 = _____?
Explanation
The pattern appears to be that the number on the right side of the equation is the last digit of the number on the left side.
The last digit of 57 is 7.