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6 Cards in this Set
- Front
- Back
sum
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answer to an addition number sentence
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difference
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answer to a subtraction number sentence
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parallel
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set of lines that never cross. They run side by side.
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congruent
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two figures that are the same size and shape.
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perimeter
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distance around a figure
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expanded form
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writing the value of each digit in a number (stretching it out)
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