Monday, October 7, 2013

Subtraction Algorithms

Today we learned two subtraction algorithms.  The first, "Trade-First", was by far the most popular with our class.  I have added a link below to assist in homework using the "Trade-First" subtraction algorithm.

Trade-First Subtraction Algorithm - Click HERE!

The second subtraction algorithm, the "Counting-Up" Method, can also be used to solve subtraction problems.  Following is a link for this method:

Counting-Up Subtraction Algorithm - Click HERE!

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