The Real Numbers & Properties Quiz

Which does not represent an integer?

• -1/2

• 6

• 0

• -5

Which is an irrational number?

• 3.4

• 1/5

• -.0303

• √2

Which statement is true?

• A. 5 is an rational number

• B. 0 is a natural number

• C. π is a rational number

• D. -9 is a whole number

Which statement is false?

• A. All whole numbers are integers.

• B. All real numbers are irrational numbers.

• C. All natural numbers are whole numbers.

• D. All whole numbers are real numbers.

Identify the property that justifies the statement: If y = -5, then -5 = y

• Symmetric

• Commutative

• Associative

• Distributive

• Identity

Identify the property that justifies the statement: 12(x + 4) = 12x + 48

• Distributive

• Commutative

• Associative

• Identity

• Inverse

Identify the property that justifies the statement: 8 + (2 + 6) = (8 + 2) + 6

• Identity

• Associative

• Commutative

• Distributive

• Inverse

Identify the property that justifies the statement: -7 = -7

• Distributive

• Associative

• Identity

• Commutative

• Reflexive

Identify the property that justifies the statement: 8a + 4 = 4 + 8a

• Commutative

• Associative

• Distributive

• Inverse

• Identity

Which set of numbers is closed under subtraction?

• Whole Numbers

• Natural Numbers

• Integers

• Irrational Numbers