Pre-Algebra Review

Front

Simplify the expression: 83 + (-53)

Back

30

Front

Solve for x: 2x - 3 = 1

Back

x = 2

Front

Distribute: -10 (-3x - 5y)

Back

30x + 50y

Front

Distribute: 2 (x + 4)

Back

2x + 8

Front

Distribute: 3x (y + 4)

Back

3xy + 12x

Front

What is the definition of a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What is the order of operations in mathematics?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms and performing operations.

Front

What is a coefficient in algebra?

Back

A numerical factor in a term of an algebraic expression.

Front

What is the distributive property?

Back

a(b + c) = ab + ac; it allows you to multiply a single term by two or more terms inside parentheses.