Three digit addition/subtraction

Front

What is three-digit addition?

Back

Three-digit addition is the process of adding numbers that have three digits, such as 123 + 456.

Front

What is three-digit subtraction?

Back

Three-digit subtraction is the process of subtracting one three-digit number from another, like 789 - 456.

Front

What do you do when adding three-digit numbers?

Back

When adding three-digit numbers, start from the rightmost digit (ones), add each column, and carry over if needed.

Front

What do you do when subtracting three-digit numbers?

Back

When subtracting three-digit numbers, start from the rightmost digit (ones), subtract each column, and borrow if needed.

Front

379 + 802 = ?

Back

1,181

Front

651 + 219 = ?

Back

870

Front

555 + 466 = ?

Back

1,021

Front

323 - 125 = ?

Back

198 postcards

Front

870 - 536 = ?

Back

334

Front

What is carrying in addition?

Back

Carrying is when the sum of a column exceeds 9, and you move the extra value to the next column.