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Unit 1 Vocabulary

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Across
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the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n}
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The number that is being divided
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a method for estimating a number by increasing or retaining a specific place value digit according to specific rules and changing all trailing digits to zero
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Pair of numbers easy to compute mentally
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Answer to subtraction problem
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Numbers multiplied together to find a product
Down
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set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}
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Reasoning to determine an approximate value
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Answers to an addition problem
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a linear model used to illustrate number relationships
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Answer to a division problem
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The number the dividend is being divided by