Exploring the Real Number System

What is the square root of 49?

• 7

• 49

• 9

• 14

What is the perimeter of a square with an area of 81 square inches?

• 81 inches

• 36 inches

• 18 inches

• 9 inches

Which fraction represents a terminating decimal?

• 1/5

• 2/3

• 1/3

• 1/2

Express -0.4 as a simplified fraction.

• -2/5

• -4/10

• -4/5

• -2/10

What is the simplified form of 15/99?

• 5/33

• 15/99

• 3/11

• 1/6

Which number set does -18.75 belong to?

• Integer

• Rational

• Natural

• Whole

Is every real number a rational number?

• True

• False

Which statement is true about integers?

• All integers are natural numbers

• No integers are natural numbers

• All integers are irrational

• Some integers are natural numbers

Which of the following is a true statement about square roots?

• Square root of 95 is between 10 and 11

• Square root of 7 is between 2 and 3

• Square root of 65 is between 7 and 8

• Square root of 7 is between 7 and 8

Which real number has the smallest value?

• 6 pi

• Square root of 51

• 7.1

• 20/3