W33 Blitz Understanding Expressions and Equations

Which of the following is an expression, not an equation?

Which statement best describes the difference between an expression and an equation?

• An expression always contains an equal sign, but an equation does not.

• An equation shows a relationship between two equal values, while an expression does not have an equal sign.

• Both expressions and equations always have variables.

• An equation cannot be solved, but an expression can.

Which pair of expressions are NOT equivalent?

• Commutative Property

• Associative Property

• Distributive Property

• Identity Property

Which of the following shows the distributive property?

Which of the following uses the inverse property of addition?