Exploring Sets of Real Numbers in 8th Grade Math

Which of the following is a characteristic of rational numbers?

• They are always whole numbers.

• They are always positive.

• They never end and have no repeating pattern.

• They can be written as a fraction a/b.

Which of the following is an example of an irrational number?

• 6/7

• 27/4

• 0.75

• 3.14159...

Which of the following is a rational number?

• e

• 1.333...

• π

• √2

Which of the following is NOT an integer?

• 7

• -3

• 4.5

• 0

Which of the following pairs are opposites?

• 3 and 3

• 5 and -5

• 7 and 14

• 0 and 1

Which of the following is a whole number?

• √16 (when positive)

• 1.5

• 0

• -1

Which of the following is NOT a whole number?

• 4

• 0

• 7

• -3

Which of the following is a natural number?

• 0

• 0.5

• 1

• -1

Which of the following statements is true?

• All rational numbers are integers.

• All integers are whole numbers.

• All whole numbers are natural numbers.

• All natural numbers are whole numbers.

Which of the following is the correct hierarchy of number sets from smallest to largest?

• Whole, Natural, Integer, Rational, Real

• Rational, Integer, Whole, Natural, Real

• Integer, Natural, Whole, Rational, Real

• Natural, Whole, Integer, Rational, Real