3 digit addition and subtraction

3-digit addition is the process of adding numbers that have three digits, such as 215 + 776.

3-digit subtraction is the process of subtracting one 3-digit number from another, like 852 - 232.

991

842

620

600

When the sum of a column exceeds 9, you carry over the tens to the next column.

Regrouping in subtraction means borrowing from the next higher place value when the top digit is smaller than the bottom digit.

Align the numbers by their place values (hundreds, tens, and units).

Align the numbers by their place values (hundreds, tens, and units).