Single Digit Addition with Regrouping

Welcome to an exciting math adventure! Today, we’re learning how to solve single-digit addition problems using regrouping. This is a skill that helps us handle bigger numbers and makes adding fun and easy. Let’s dive in!

What is Regrouping?

Regrouping is a way to organize numbers when their sum in one place value is greater than 9. For example:

8 + 7 = 15

Here, the number 15 has two digits. We can’t fit both digits in the ones place, so we “regroup” the 10 into the tens place and leave the 5 in the ones place.

This process makes it easier to add numbers step by step without confusion.

How to Add with Regrouping

Let’s go through an example together. We’ll add 5 + 6. Follow these steps:

1. Step 1: Add the ones place. Start by adding the two numbers:5 + 6 = 11
2. Step 2: Regroup the tens. Since the result (11) is greater than 9:
   • Write the 1 (ones digit) in the ones place.
   • Carry the other 1 (tens digit) over to the tens place.
3. Step 3: Add the tens. If there are other numbers in the tens place, add them together along with the carried-over digit. If there are no numbers in the tens place, just write the carried-over number as the final result.

And that’s it! The final answer is 11.

1) Add these numbers:

2) Add these numbers:

3) Add these numbers:

4) Add these numbers:

5) Add these numbers:

6) Add these numbers:

7) Add these numbers:

8) Add these numbers:

9) Add these numbers:

10) Add these numbers:

Answers:
1) 10
2) 12
3) 10
4) 11
5) 11
6) 18
7) 16
8) 15
9) 14
10) 12