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Question from kim, a parent:
My daughter brought home a question for math homework.
What is a group of three numbers within a larger number?

Kim,

Do you mean like the "234" in

"1,234,567.89"

"Digit group" seems to be fairly standard. Older books (pre-20th-century) call it a "period" (though they tended to write long numbers without any divisions, eg "1234567.89", they still used the idea when explaining how to read numbers aloud.)

-RD

 

Kim,

Also have a look at Paul's response to this question a few yers ago.

Harley

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