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

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

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

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

Complete the problems below.

 Hundreds Tens Ones 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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