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Mathematics 11 Online
OpenStudy (anonymous):

There are 24 counters how many counters could you add without having to regroup? Why?

OpenStudy (anonymous):

You can add 5 more because 24 + 5 = 29. If you add 6 you would have 30 so ,you would have to regroup by exchanging 10 ones for a 10 bar.

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