Real Number System

Check all the numbers that are rational.

• $\sqrt{36}$

• $-\frac{3}{8}$

• $4\pi$

• $-200$

What two numbers is the  $\sqrt{37}$  between?

• 3 and 4

• 4 and 5

• 5 and 6

• 6 and 7

What two numbers is the  $\sqrt{24}$  between?

• 3 and 4

• 4 and 5

• 5 and 6

• 6 and 7

How can you tell if a number is rational?

• it has a positive value

• it can be written as a ratio of two integers (a fraction)

• it has a negative value

• it has a $\pi$ symbol

Which of these numbers is an integer?

• 4.2

• 4

• -4.2

• 4/3

How would you classify the number zero?

• Rational number

• Integer

• Whole number

• Natural number

Pi is an example of which type of number?

• Irrational number

• Natural number

• Unnatural number

• Fraction

Which category is a subset of the integers?

• Rational numbers

• Whole numbers

• Irrational numbers

• Negative numbers

Classify the following number:

1.01276894...

• Rational

• Irrational

Classify the following:
 -78

• integer
• integer, real
• integer, whole, rational
• integer, rational, real