Algebra Vocabulary Review

A(n) ________ is a letter or symbol used to represent an unknown value.

A(n) ______________ is a mathematical sentence stating that two quantities are equal.

The number 3 in the ordered pair (2,3), is the __________________

________ contain a combination of numbers and operations, such as add., subt., mult., and div.

In an ordered pair, the _______________ is listed first.

By the __________, a times b = b times a

Which expression represents the phrase "18 decreased by n"

___________ is a branch of mathematics that uses symbols.

Which expression represents the phrase, "5 times a number"

3 (2) + 5

3 (2+6) - 10

A(n) __________ contains variables, numbers, and at least one operation.

Evaluate a/b when a = 18 and b = 3

Which expression represents the phrase "n less than 18"

Evaluate u+4v when u=7 and v=3