15 terms

absolute value

A number's distance from 0 on a number line.

additive identity

Zero is the _____ for rational numbers. For any rational number a, 0+a=a.

additive inverses

Two numbers, a and b, that satisfy the equation a+b=0.

algorithm

A set of rules for performing a procedure. For example, the steps to perform long division.

Commutative Property

The order of the addition or multiplication of two numbers does not change the result.

Distributive Property

A mathematical property used to rewrite expressions involving addition and multiplication. The _____ states that for any three numbers a, b, and c, a(b+c)=ab+ac.

expanded form

The form of an expression made up of sums or differences of terms rather than products of factors. For example, the expressions 20+30 and 5(4)+5(21).

factored form

The form of an expression made up of products of factors rather than sums or differences of terms. For example, the expressions 10(2+3) and 5(4+21).

integer

The whole numbers and their opposites.

multiplicative identity

The _____ for rational numbers is 1 or any rational expression equal to 1. Multiplying any rational number by 1 results in a product identical to the original rational number. For any rational number N, N×1=N. For example, 49×1=49.

multiplicative inverses

Two numbers, a and b, that satisfy the equation ab=1. For example, 3 and 1/3 are _____ since 3×1/3=1

number sentence

A mathematical statement that gives the relationship between two expressions that are composed of numbers and operation signs.

opposites

Two numbers whose sum is 0.

Order of Operations

A set of agreements or conventions for carrying out calculations with one or more operations, parentheses, or exponents. For example, PEMDAS.

rational number

A number that can be written as a quotient of two integers where the denominator is not 0. For example, any fraction.