Expressions Unit Test (Final Exam) Review

Front

What does the expression 8⁶ represent?

Back

8⁶ represents the multiplication of 8 by itself 6 times: 8 x 8 x 8 x 8 x 8 x 8.

Front

Choose the word problem that best represents the expression 35 + 5x.

Back

There are 35 people at a picnic. Other families decided to come to the picnic. Each family that came had 5 people in it. How many people are now at the picnic?

Front

What is the least common multiple (LCM) of 8 and 5?

Back

The least common multiple (LCM) of 8 and 5 is 40.

Front

Which expression is equivalent to 15x + 10 - 6x - 1?

Back

The expression simplifies to 9x + 9.

Front

What is the expression that represents 21 + 13x?

Back

21 + 13x is an expression that combines a constant (21) and a variable term (13x).

Front

Define an expression in mathematics.

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value in an expression.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac, meaning you can distribute a across the terms inside the parentheses.

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression.