Real Number Comparison and Ordering

Which is an example of an integer?

• -9

• 0.567

• 1/2

• -0.957643...

Which is an example of a rational number?

• .211232112421125. . . .

• π

• √25

• √12

A decimal that stops (like 2.48) is which type of number? 

• Rational
• Irrational

A repeating decimal (like 4.7777...) is which type of number?

• Rational

• Irrational

A decimal (like 3.4126897364529...) is which type of number?

• Rational

• Irrational

Which of the following numbers is rational?

• √8
• √16
• √50
• √75

Which is an example of an irrational number?

• -2/3

• .75575557654..

• 23

• 0

Which of the following numbers is irrational?

• √8
• ¾
• 2
• -1.325

Which statement about the real number system is NOT true?

• All square roots are either natural numbers, or irrational numbers
• All whole numbers are also natural numbers, except for 0.
• Repeating decimals are rational
• Some fractions are irrational

Put in the symbol to make the statement true...
-17.5   _________ -√121

• >
• <
• =