My SchoolhouseNumbers
HOME ONLINE LEARNING LESSON LISTS FREE WORKSHEETS FAQ

Addition with Regrouping

Addition with Regrouping - Three-Digit Addition - Elementary Math Lessons & Tests - My Schoolhouse - Online Learning
 

To find the sum of three digit numbers, you need to first add the ones place value.  You might need to regroup the ones as in the example below.

Then add the tens place value. Next, add the hundreds place value.

 

Find the sum.

Hundreds Tens Ones
1
3 5 4
1 2 7
+_________
1

 

Add the ones.  Regroup!

Hundreds Tens Ones
1
3 5 4
1 2 7
+_________
1

Add the tens.

Hundreds Tens Ones
1
3 5 4
1 2 7
+_________
8 1

Add the hundreds.

Hundreds Tens Ones
1
3 5 4
1 2 7
+_________
4 8 1

 

Complete the problems below.

 

 
Hundreds Tens Ones
spacer.gif (42 bytes)1
4 3 5
1 4 7
+__________
 
Hundreds Tens Ones
4 3 5
1 4 7
+__________
2
   
Hundreds Tens Ones
1
4 3 5
1 4 7
+__________

 

Hundreds Tens Ones Hundreds Tens Ones Hundreds Tens Ones
3 6 7 6 4 9 2 5 6
5 2 8 2 4 7 4 2 5
+ __________ + __________ + __________
5 9

 

   
2 3 6 1 2 3 4 2 8 7 1 3 9 2 3 4 2 5
+4 5 7 +2 3 9 +3 5 4 +1 2 8 +   4 7 +1 3 9
5 6 8 3 4 5 6 1 4 5 7 1 3 0 7 5 7 8
+3 3 9 +1 2 6 +1 2 7 +1 0 9 +2 4 7 +3 2 6

 

 

 

 

 

 

 

 

 

 

 

 

 


Elementary & Middle School Lessons & Self-Correcting Worksheets for Children in all Subject Areas.
Lessons & Worksheets in Math, Reading, Spelling, Science, Language, and Social Studies.
   
My Schoolhouse
Copyright 1999-2022 by Educational Designers, LLC. All rights reserved.

"This site uses cookies from Google to deliver its services and analyze traffic. Your IP address and user-agent are shared with Google along with performance and security metrics to ensure quality of service, generate usage statistics, and to detect and address abuse."