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April 18, 2014

April 18, 2014

Posted by **Alex L.** on Saturday, September 17, 2011 at 1:14pm.

(eighty-one thousand minus fifty-five thousand, four hundred fifty-six)

It mas to be done manually, without a calculator.

- Math -
**Ms. Sue**, Saturday, September 17, 2011 at 1:25pmThese sites should help you figure out how to do your problem.

http://www.mathplayground.com/howto_regroupI.html

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

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