Exploring Rational and Irrational Concepts

Which of the following is a rational number?

• √3

• 0.75

• π

• √2

How can the number 2 be written as a fraction?

• 2/1

• 2/2

• 1/1

• 1/2

Tags

CCSS.3.NF.A.3C

Which of the following is a repeating decimal?

• 0.333...

• π

• 0.25

• √5

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the fraction form of the repeating decimal 0.18 with both 1 and 8 repeating?

• 1/8

• 18/100

• 18/99

• 1/9

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which of the following is an irrational number?

• √25

• 0.5

• π

• 3/4

Tags

CCSS.8.NS.A.1

Why is the number π considered irrational?

• It is a fraction

• It is a repeating decimal

• It is a non-terminating, non-repeating decimal

• It is a perfect square

Tags

CCSS.8.NS.A.1

Which of the following is a non-perfect square?

• √9

• √4

• √16

• √7

Is the number -12 rational or irrational?

• Irrational

• Neither

• Rational

• Both

What type of number is 0.6?

• Rational

• Neither

• Irrational

• Both

Which of the following is not a rational number?

• 0.5

• √30

• √25

• 5/9