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Thursday 6 August 2015

Part Adder

Today Shannon and I worked a two digit plus another two digit number using part adder.  We figured out that both of the strategies make 97.
The first strategy is compensating because we added a number and then took away that number.

The second strategy is doubling because we added 30 and another 30.


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2 comments:

  1. Online journalism programs8 August 2015 at 18:08

    The ideas and the work behind this will pay off so much.

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