Math Expressions Terms

What is an expression?

• A math phrase made up of numbers, variables, and operations (no equal sign)

• A part of an expression separated by + or − signs

• A letter that represents an unknown number

• The number in front of a variable

What is a term?

• A math phrase made up of numbers, variables, and operations (no equal sign)

• A part of an expression separated by + or − signs

• A letter that represents an unknown number

• The number in front of a variable

What is a coefficient?

• The number in front of a variable

• A letter that represents an unknown number

• A number that doesn't change (no variable)

• Terms that have the same variable(s) raised to the same power

What is a constant?

• A number that doesn't change (no variable)

• A letter that represents an unknown number

• The number in front of a variable

• To find the value of an expression by replacing variables with numbers

What are like terms?

• Terms that have the same variable(s) raised to the same power

• A part of an expression separated by + or − signs

• A letter that represents an unknown number

• A number that doesn't change (no variable)

What does simplify mean?

• To combine like terms and make an expression easier to work with

• To find the value of an expression by replacing variables with numbers

• To multiply out parentheses in an expression

• Having the same value or meaning

Write an algebraic expression:
three times a number

• 3n

• 3/n

• 3+n

• 3-n

things that are being added or subtracted in an expression

• term

• variable

• factor

• coefficient

Which expression contains exactly 3 terms?

• 5 + 6xy

• 9 + 4t

• 8 + 2y - 5x

• 24xy

Write an algebraic expression:
10 less than a number

• 10n

• 10 - n

• n - 10

• 10/n