Three-Digit Addition with Regrouping

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 does regrouping mean in addition?

Back

Regrouping in addition means carrying over a value from one column to the next when the sum exceeds 9.

Front

What is the sum of 598 and 304?

Back

902

Front

What is the sum of 654 and 287?

Back

941

Front

What is the sum of 935 and 268?

Back

1203

Front

What is the sum of 183 and 427?

Back

610

Front

What is the sum of 426 and 359?

Back

785

Front

How do you add numbers with regrouping?

Back

1. Add the digits in the ones place. If the sum is 10 or more, carry over to the tens place. 2. Add the digits in the tens place, including any carry. 3. Add the digits in the hundreds place.

Front

What is the first step in adding three-digit numbers?

Back

The first step is to line up the numbers by their place values: hundreds, tens, and ones.

Front

What do you do if the sum of the ones place is 10 or more?

Back

You regroup by carrying over 1 to the tens place.