Wednesday, September 25, 2013

Addition Algorithms- Partial Sums Addition

Everyday Math has Algorithm Animations to watch how-to do the different addition methods.

We created our own how-to videos!  Watch us explain...PARTIAL SUMS ADDITION


67+85 (using partial sums)


1672+3221 (using partial sums)

 
4614+6058 (using partial sums) 


227+386 (using partial sums) 


439+71 using partial sums

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