Algebraic Expressions

What is a variable?

• a term that includes a variable

• a letter that stands for an unknown number

• a term that is a known number without variables

Which operation is represented by 2x?

• addition

• subtraction

• multiplication

• division

What do you call the result of multiplication?

• sum

• difference

• product

• quotient

Write an expression with the same meaning as "subtract a number times 4 from 10." (Use x as a variable if needed)

How many terms are in 10-4x?

• 1

• 2

• 3

• 4

What is the coefficient in the expression 10-4x?

Write an expression with the same meaning as "7 less than the square of a number."

Write an expression to represent "the sum of 3 and the quotient of a number divided by 6."

Martina is 3 inches less than twice as tall as her little brother. Write an expression for Martina's height.

• 3x-28

• 3-2x

• 2x-3

• 3x-2

How many terms are in the following expression?

3x + y + 42

• 2 terms

• 3 terms

• 4 terms