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1
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the opposite of a number
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2
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the result when one number is subtracted from another
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3
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the distance of a number from zero on a number line
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4
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a mathematical phrase that contains operations, numbers and/or variables
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5
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two numbers that are equal distance from zero on a number line
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6
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to find the value of a numerical or algebraic expression
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7
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replacement of a variable with a number or another expression in an algebraic equation
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8
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set of whole numbers and their opposites
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11
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a rule for evaluating expressions
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14
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a mathematical sentence that shows that two expressions are equivalent
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