TOPIC 4 REVIEW - EXPRESSIONS

Front

What expression represents how much Carla and her sisters earned altogether if each earned 9 dollars?

Back

9x

Front

How much did Susan spend on 2 cards that cost 5 dollars each and 2 envelopes that cost 3 dollars each?

Back

2(3 + 5)

Front

What does it mean to distribute in mathematics?

Back

To multiply the numbers inside the parentheses by the number on the outside.

Front

What is the result of (-5x + 3) + (3x + 6)?

Back

-2x + 9

Front

What is the result of (-5x + 3) - (3x + 6)?

Back

-8x - 3

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators without an equality sign.

Front

What is a variable in an expression?

Back

A symbol, often a letter, that represents an unknown value.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What is a coefficient in an algebraic expression?

Back

A numerical factor that multiplies a variable.

Front

What is the distributive property?

Back

a(b + c) = ab + ac, meaning you multiply the term outside the parentheses by each term inside.