Expressions Vocabulary

What is a number that multiplies a variable called? For example, in the expression 5x + 2, the 5 is one of these.

• difference

• coefficient

• congruent

• term

In 6x + 2, what is the 6?

• sum

• equation

• term

• coefficient

Answer explanation

The 6 is the coefficient, but it could also be called a factor since it is multiplied times the x.

What is the best expression for:

10 inches more than three times the height?

• 3 x h + 10

• 3 + h x 10

• 3h + 10

• 3(h + 10)

What are equivalent expressions?

• The number that tells how many equal factors there are.

• Expressions which are equal to each other for any values of their variables.

• The result of multiplication.

• To find the value of a mathematical expression.

What does it mean to evaluate an expression?

• To find the value of a mathematical expression.

• The number that tells how many equal factors there are.

• The result of multiplication.

• Expressions which are equal to each other for any values of their variables.

What does it mean to simplify an expression?

• A number with a value that is always the same.

• Another way to solve a problem.

• To rewrite the same algebraic expression with no like terms and in a compact manner.

• The number that tells how many equal factors there are.

What is an algebraic expression?

• A group of numbers, symbols, and variables that express an operation or a series of operations.

• A number that is multiplied by a variable.

• A symbol, usually a letter, that can stand for a variable quantity.

• A quantity that changes or can have different values.

What are like terms?

• Terms that have the same variables and the same exponents.

• A group of numbers, symbols, and variables that express an operation or a series of operations.

• A number that is multiplied by a variable.

• A quantity that changes or can have different values.

Which best describes the Distributive Property?

• a x (b + c) =ab +c

  where a, b and c stand for any real numbers

• a x (b-c) = ac-b, where a, b, and c stand for any real numbers

• a x (b-c) = a x (b+c), where a, b, and c stand for any real numbers

• a (b+c)= (a x b) + (a x c) and a (b - c) = (a x b) - (a x c), where a, b, and c stand for any real number

Mark all the EXPRESSIONS

• 7 - 2

• 7 - 2 = 5

• 3 x 5

• 3 x 5 = 15