Question

When adding 51.2 to a certain number, the sum is 56.05, as seen below. What number should go in the box to complete the addition problem?

Answer 1

the number in the box would be 4.

hope this helps you

Answer 2

The answer is 4 because when you add the two digits to the right you have to carry one, and 1+1+x = 6 so 2+x=6, so x=4