56 take away what equals 51?
We need to find the number that we take away from 56 to leave us with 51. If we find the difference between 56 and 51, that would tell us the missing number. We could start at number 51 on a number line and count forward until we reach number 56. The number of jumps between 51 and 56 is the difference between these two numbers: one, two, three, four, five. The difference between 56 and 51 is five.
56 take away five equals 51.