Homework Help: math

Posted by yc on Monday, April 11, 2011 at 5:41pm.

subtract with or without regrouping...which number can you subtract from 17 w/ or w/out needing to regropu?For which numbers would you need to regroup?

math - Ms. Sue, Monday, April 11, 2011 at 5:51pm
You would need to regroup if you subtract 8 or 9 from 17.

http://www.mathsisfun.com/numbers/subtraction-regrouping.html

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