Choice Board #9 - Real Number System

Which statement is NOT true?

• Every rational number is a real number.
• Every counting number is a whole number.
• Every integer is a rational number.
• Every decimal number is an irrational number.

Classify the Number: -23

• Rational
• Real, rational, integer
• integer
• Real, irrational, whole

-14 could NOT be which type of number?

• Integer
• Real
• Rational
• Natural

Classify 17/10

• Whole
• Rational
• Natural
• None of the above

What number below is a natural, whole, integer, rational, and real number ?

• -4
• 5.1
• 0.7
• 3

Classify √35.

• Rational, Integer
• Whole, Integer, Rational 
• Irrational, Integer
• Irrational

Classify 0

• Whole
• Integer
• Rational
• All of the above

How would 0.333333 be classified?

• rational and real 
• real and whole
• only integer 
• only irrational

What is the square root of 81?

• 40.5
• 9 
• 6561
• 162

Which number is an irrational number?

• √9
• √49
• √100
• √120