Addition with Regrouping

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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

 

 

 

 

 

 

 

 

 

 

 

 

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