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Cards In This Set
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Natural Number
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Greater than 0 and no decimal or fraction attached.
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Whole Number
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All natural numbers and 0.
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Integers
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Positive and negative natural numbers and 0. All are either even (divisible by 2), or odd (not divisible by 2).
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Rational Number
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Can be represented as a fraction. Any decimal must terminate or resolve in a repeating number.
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Irrational Number
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CANNOT be represented as a fraction. An irrational decimal never ends and never resolves in a repeating pattern.
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Real Number
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Can be represented by a point on a number line. Includes both rational and irrational numbers.
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Imaginary Number
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Includes the unit "i", where i=square root of -1. because i squared = -1, these numbers produce a negative value when squared.
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Complex Number
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Comes in the form a + bi where a and b are real numbers. All Imaginary numbers are also complex.
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Factors
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All the numbers that can multiply together to make a number.
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Prime Number
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Divisible only by itself and 1.
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Composite Number
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Has more than 2 factors.
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Prime Factorization
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Every composite number can be written as a unique product of prime numbers. ex: 90, 90 = 2 x 3 squared x 5
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Absolute Value
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The distance of a number from 0. Since distance is always positive, this value is always positive. Represented by IaIl-2l = 2
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1 yard =
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0.914 meters
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1 inch =
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2.54 centimeters
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