3 Digit Addition with Regrouping

Front

What is 3-digit addition?

Back

3-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 345 and 678?

Back

1023

Front

How do you add 796 and 208?

Back

First, add the ones: 6 + 8 = 14 (write 4, carry 1). Then add the tens: 9 + 0 + 1 = 10 (write 0, carry 1). Finally, add the hundreds: 7 + 2 + 1 = 10. So, 796 + 208 = 1004.

Front

What is the first step in 3-digit addition?

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 column is more than 9?

Back

You regroup by carrying over 1 to the tens column.

Front

What is 517 + 206?

Back

723

Front

What is the sum of 724 and 189?

Back

913

Front

What is the importance of place value in addition?

Back

Place value helps us understand the value of each digit in a number and ensures we add the correct columns.

Front

How do you check your addition?

Back

You can check your addition by adding the numbers again or by using subtraction to see if the difference matches the original numbers.