Real Numbers & Absolute Value

What are real numbers?

• The set of numbers that contain all rational and irrational numbers

• The set of counting numbers

• The set of whole numbers and their opposites

• The set of nonrepeating and nonterminating decimals

What are irrational numbers?

• The set of counting numbers

• The set of counting numbers and zero

• The set of nonrepeating and nonterminating decimals

• The set of repeating and terminating decimals

Tags

CCSS.8.NS.A.1

What are rational numbers?

• The set of counting numbers and zero

• The set of whole numbers and their opposites

• The set of nonrepeating and nonterminating decimals

• All fractions, or numbers that can be written as a fraction. Also, the set of repeating and terminating decimals.

Which of the following is a set of natural numbers?

• {1, 2, 3...}

• {0, 1, 2, 3...}

• {...-3, -2, -1, 0, 1, 2, 3...}

• {0, 0.5, 1, 1.5, 2...}

Which of the following is a set of integers?

• {1, 2, 3...}

• {0, 1, 2, 3...}

• {...-3, -2, -1, 0, 1, 2, 3...}

• {0, 0.5, 1, 1.5, 2...}

Which of the following is a set of whole numbers?

• {1, 2, 3...}

• {0, 1, 2, 3...}

• {...-3, -2, -1, 0, 1, 2, 3}...

• {0, 0.5, 1, 1.5, 2...}

Identify each classification of the real number system that can describe the set of numbers shown.

 $\left\{2,\ 8,\ 31,\ 85\right\}$  

• Integer

• Irrational

• Natural

• Rational

• Whole

Identify each classification of the real number system that can describe the set of numbers shown.

 $\left\{\pi,\ \sqrt{2\ },\ \sqrt{3},\ \sqrt{99}\right\}$  

• Integer

• Irrational

• Natural

• Rational

• Whole

Which of the following real numbers is NOT a whole number?

• 0

• $\frac{1}{3}$

• $\frac{4}{2}$

• $3^2$

Which of the following real numbers is NOT a rational number?

• 0.456

• $\sqrt{16}$

• $\pi$

• -7.2