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Published byLeah Turner Modified over 2 years ago

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Shortcuts in Addition By Monica Yuskaitis

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Adding Long Columns Since addition is Commutative it doesnt matter which numbers you add first = =

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Adding Long Columns Begin by looking for combinations of ten

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Adding Long Columns Add up your ten combinations first

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Adding Long Columns Add up your ten combinations again

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Review Combinations of Ten 1 + = = = = = = = = =

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Adding Long Columns When a number keeps repeating use multiplication

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Adding Long Columns When a number keeps repeating use multiplication

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