Addition Skills

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Not Right For WatchKnowLearn
Ages: 8 - 12
6677 Views:
Addition Properties- Commutative, Zero and Associative Properties
From eduplace.com, produced by Houghton Mifflin
Students will learn to use the properties of addition to make addition easier.  The associative property says that addends can be grouped in any order.  Changing the order that numbers are added does not change the sum.  The sum of zero plus a number... [more]
May 20, 2010 at 03:58 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
4278 Views:
Addition 3 (Introducing Carrying) - Khan Academy
From YouTube, produced by Salman Khan
In this video, the instructor uses the Paint Program to review how to add numbers. He starts with single-digit numbers, moves into two-digit and four-digit numbers, and reviews place value. (08:57)
January 27, 2010 at 02:32 AM
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