Classifying Real Numbers

A decimal that stops is which type of number? Example: 2.75

• Rational
• Irrational
• None of these

Is 8.27 rational or irrational?

• Rational
• Irrational
• Both
• None of the above

What is the definition of an integer

• All positive and negative whole numbers
• Decimals or fractions that terminate for repeat
• All positive whole numbers
• 0

-14 could be classified as all of these EXCEPT?

• Integer

• Real

• Rational

• Whole

Classify the number: 3

• natural, whole, integer, rational, real

• whole, integer, rational, real

• natural, whole, integer, irrational, real

• natural, whole, integer, rational

-14 could NOT be which type of number?

• Integer
• Real
• Rational
• Natural

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.

Which set of numbers contains only integers?

• {-14, -0.3, 0, 2}
• {-10, 3, 5, 2.75}
• {0, 1, 2,  21/4}
• {√1, √4, √25, √81}

Explain the error

• -1.2 isn't an integer.
• -2 isn't a whole number and 3.4 isn't a rational number.
• -2 isn't a whole number and -1.2 isn't an integer.
• The numbers are graphed correctly.

0.8 is a rational number

• True
• False