6th grade Math Vocabulary
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The smallest common multiple of a set of two or more numbers. LCM
Least Common Multiple

The product of a whole number and any other whole number.
Multiple

Two or more nonzero whole numbers whose greatest common factor is 1.
Relatively Prime

A special ratio that compares a number to 100 using a symbol (%).
Percent

An equation showing that tow ratios are equivalent.
Proportion

A ratio comparing two different units.
Rate

A comparison of two numbers using division.
Ratio

A number that can be expressed as a ratio of two integers.
Rational Number

A rate with a denominator of 1.
Unit rate


An integer that divides evenly into another.
Factor

The sum stays the same when the grouping of addends is changed. (a + b) + c = a + (b + c)
Associative Property of Addition

The product stays the same when the grouping of factors is changed. (a x b) x c = a x (b x c)
Associative property of Multiplication

The sum stay the same when the order of the addends is changed. a + b = b + a
Commutative Property of Addition

The product stays the same when the order of factors is changed. a x b = b x a
Commutative Property of Multiplication

a(b + c) = a x b + a x c , where a, b, and c stand for any real numbers.
Distributive Property

The number that tells how many equal factors there are.
exponent

Rules describing what sequence to use in evaluating expressions.
Order of Operations

A mathematical statement including numbers and operations
Numeric Expression

A group of numbers, symbols, and variables that express an operation or a series of operations.
Algebraic expression

A numerical factor in a term of an algebraic expression
coefficient

Terms that have identical variable parts. (2n and n)
Like terms

A number, variable, product, or quotient in an expression. It is not a sum or difference.
Term

A quantity that changes or can have different values. A symbol, usually a letter, that can stand for different quantity.
Variable

Operations that "undo" each other . (addition and subtraction)
Inverse operation