Adding Three Digit Numbers with Base Ten Blocks

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Adding Three Digit Numbers with Base Ten Blocks

• Second Grade Math
• 2nd Nine Weeks Week Three
• Bridgeton Elementary School
• Chrissy French

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When we add base ten blocks we are looking for
the magic number 10!
Dont forget to put the new hundred in the
hundreds place!
Now, add the hundreds. 142 7
Next add the tens. 84
Add the ones first. 35 8
12
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OR You can write the numbers and add the
numbers instead of the base ten blocks. Like
this.
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Lastly, add all of the hundreds. 1427
Next add the tens. 8412
Always add the ones first. 358
483 245
8
2
7
Remember to regroup when your answer is over 10.