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How do I regroup a number?
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How do I regroup a number?

User Gandirham
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here’s an example: in 2 digit addition, you might have 15 + 17. In this case, you need to regroup. When you add 5 + 7 you have 12, or one ten and two units. So, you regroup the tens into the tens column and leave the two units.
User Vikarjramun
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