Addition and Subtraction

Analisa Pecina, 11. ožu 2017.


  • 1. Place Value: Subtraction

1.

Place Value: Subtraction

First subtract the two numbers by regrouping; borrow if necessary--don't use the standard algorithm. Check you answer. [br]Relate the process of regrouping to the steps in the standard algorithm.
– Austen Meek

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