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4 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Take Away Model
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Second set being taken away from original set
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Missing Addend Model
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an algebraic type of reasoning is used where students compute a difference by determining the value of an unknown addend
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Comparison Model
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Students determine "how many more" of one exists from another.
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Number Line Model
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subtraction is represented by moving left on the number line a given number of units
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