Three-Digit Addition and 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 call the result of addition?

Back

The result of addition is called the sum.

Front

What do you call the result of subtraction?

Back

The result of subtraction is called the difference.

Front

How do you add hundreds, tens, and ones?

Back

You add the hundreds, then the tens, and finally the ones, carrying over if needed.

Front

What is carrying in addition?

Back

Carrying is when the sum of a column exceeds 10, and you move the extra value to the next column.

Front

What is borrowing in subtraction?

Back

Borrowing is when you take 1 from the next column to help subtract when the top number is smaller.

Front

What is the place value of 8 in 784?

Back

In 784, the 8 is in the tens place, representing 80.

Front

What is the place value of 5 in 543?

Back

In 543, the 5 is in the hundreds place, representing 500.

Front

If you have 8 hundreds, 7 tens, and 8 ones, what is the total?

Back

The total is 878.