Real Number System

Which group only contains natural numbers?

• 0, -2, 0.5

• 5, 2, 14

Which of the following is NOT a whole number?

• 0

• 3

• 0.4

• 12

Which of the following is an integer?

• 0.53

• -9

• -1.6

Which of the following is Rational?

• 0.7196432.....

Which of the following is Irrational?

• 8

• 0.67

Match the following to the BEST (most exact) category that it belongs to

• whole number

• irrational

• 0

• integer

• natural number

• -4

• rational

• 5

What are your counting numbers (1,2,3..)?

• Rational Numbers
• Whole Numbers
• Natural Numbers
• Irrational Numbers

The set of natural numbers plus a “0”

W = {0, 1, 2, 3,…}

• Natural Numbers

• Integers

• Irrational Numbers

• Whole Numbers

True or False: Zero is a counting number.

• True

• False

The set of natural numbers, their negatives and 0

= {-3, -2, -1, 0, 1, 2, 3,…}

• Whole Numbers

• Integers

• Natural Numbers