Multi-Digit Addition with Regrouping

Front

What is multi-digit addition?

Back

Multi-digit addition is the process of adding numbers that have more than one digit, such as 23 + 45.

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

How do you add 623 + 18 using regrouping?

Back

First, add the ones: 3 + 8 = 11. Write down 1 and carry over 1. Then add the tens: 2 + 1 + 1 = 4. Finally, add the hundreds: 6 + 0 = 6. The answer is 641.

Front

What is the sum of 936 + 112?

Back

The sum is 1,048.

Front

How do you add 73 + 19?

Back

Add the ones: 3 + 9 = 12 (write down 2, carry over 1). Add the tens: 7 + 1 + 1 = 9. The answer is 92.

Front

What is the result of 6543 + 8574?

Back

The result is 15,117.

Front

How do you add 362 + 486?

Back

Add the ones: 2 + 6 = 8. Add the tens: 6 + 8 = 14 (write down 4, carry over 1). Add the hundreds: 3 + 4 + 1 = 8. The answer is 848.

Front

What is carrying in addition?

Back

Carrying is the process of moving a value from one column to the next when the sum of that column exceeds 9.

Front

What is the first step in multi-digit addition?

Back

The first step is to align the numbers by their place values (ones, tens, hundreds, etc.).

Front

What do you do if the sum of a column is 10 or more?

Back

If the sum is 10 or more, write down the last digit and carry over the first digit to the next column.