Real Numbers

Which of the following numbers is irrational?

• √8

• ¾

• 2

• -1.325

Which of the following is rational?

• .211232112421125. . . .

• π

• √25

• √12

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

Whole numbers are natural numbers together with "zero."

• True

• False

Integers are whole numbers and their opposites.

• True

• False

All numbers are real numbers.

• False

• True

The square root of 64 is a natural number.

• False

• True

All whole numbers are integers.

• False

• True

Which one is not a perfect square?

• 100

• 49

• 117

• 144

 ex 1. Add. 
-3+(-11)

• -8

• -14

• 14

• 8