Rational and Irrational

The numbers 0, 1, 2, 3, ... are called

• whole numbers
• integers
• rational numbers
• natural numbers

Numbers like -3, -2, -1, 0, 1, 2, 3 are called

• whole numbers
• integers
• rational numbers
• natural numbers

A rational number can be written as a fraction.

• True
• False

-10 is a whole number

• True
• False

-3.5 is an integer

• True
• False

Which statement is true?

• Every rational number is an integer
• Every whole number is a counting number
• Every integer is a whole number
• Every whole number is a rational number

Which description best describes an irrational number?

• A repeating decimal
• An improper fraction
• A non-repeating, non-terminating decimal
• A perfect square

Which of the following is rational?

• √9

• √2

• √3

• √55

Is √2 rational or irrational?

• Rational

• Irrational

-17.5

• Rational
• Irrational