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17 Cards in this Set
- Front
- Back
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algebra
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a mathematical language that uses symbols, ususally letters, along with numbers. The letters stand for numbers that are unknown.
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algebraic expression
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A combination of variables, numbers, and at least one operation.
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base
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In a power, the number used as a factor. In 10(3), the base is 10. (10 x 10 x 10)
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clustering
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An estimation method in which a group of numbers close in value are rounded to the same number.
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compare
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<, >, or =
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compatible numbers
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Numbers that are easy to divide mentally.
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composite numbers
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A number greater than 1 with more than two factors.
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cubed
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The product in which a number is a factor three times. Two cubed is 8 because 2 x 2 x 2 = 8.
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equation
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A mathematical sentence that contains an equals sign (=).
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equivalent
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is equal to
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evaluate
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To find the value of an algebraic expression by replacing variables with numbers.
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exponent
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In a power, the number of times the base is used as a factor. In 5(3), the exponet is 3. That is, 5(3) = 5 x 5 x 5.
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factor
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A number that divides into a whole number with a remainder of zero.
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greatest common factor (GCF)
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The greatest of the common factors of two or more numbers. The GCF of 24 and 30 is 6.
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integer
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The whole numbers and their opposites . . . . -3, -2, -1, 0, 1, 2, 3 . . .
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inverse operation
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Operations which undo each other. For example, addition and subtraction are inverse operations.
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least common multiple (LCM)
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The least of the common multiples of two or more numbers. The LCM of 2 and 3 is 6.
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