The same number belongs in both these boxes. Five is the missing number less than 12. 12 take away the missing number equals five. What is that number?
We need to find the difference between five and 12. How many times do we need to count forward from five to reach 12? One, two, three, four, five, six, seven. The missing number is seven.
Five is seven less than 12. 12 take away seven equals five.