rational vs. irrational numbers

What kind of number is   π   ?

• rational

• irrational

• whole

• integer

A REPEATING decimal is what type of number?

• Rational 

• Irrational

Irrational numbers...

• reduce to π

• never end and never repeat

• can sometimes be perfect squares

• must be negative

 $\frac{7}{13}$  

• Rational

• Irrational

The area of a square painting is 81 cm².  What is the side length of the painting?

• 40.5 cm

• 162 cm

• 6,561 cm

• 9 cm

Which of the following numbers is irrational?

• √8

• ¾

• 2

• -1.325

Which of the following is rational?

• .211232112421125. . . .

• π

• √25

• √12

Which of the following contains only rational numbers?

• 2.5, .764567..., 1/2, √27

• π, √4, √16, 7.7

• 6.7, 4.45, -3, 

• 5, -4.5, √13, √-9

What is the definition of an integer

• All positive and negative whole numbers

• Decimals or fractions that terminate for repeat

• All positive whole numbers

• 0

-14 could NOT be which type of number?

• Integer

• Real

• Rational

• Natural