Multi-Digit Addition and Subtraction

Multi-digit addition is the process of adding numbers that have more than one digit, such as 324 + 625.

Multi-digit subtraction is the process of subtracting numbers that have more than one digit, such as 843 - 731.

The sum of 324 and 625 is 949.

The difference is 112.

The sum is 568.

The difference is 13.

The sum is 763.

The result of an addition problem is called the sum.

The result of a subtraction problem is called the difference.

You line up numbers by placing them in columns according to their place values (ones, tens, hundreds).