Rational vs. Irrational Numbers

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a ratio.
• A rational number cannot be a repeating  decimal.

Irrational Numbers....

• cannot be represented as a simple fraction
• can be represented as a fraction
• can be a repeating decimal

Rational or Irrational

• Rational
• Irrational
• IDK
• 12

What type of number is π ?

• Rational
• Irrational

Which of the following numbers is irrational?

• √8
• ¾
• 2
• -1.325

Which of the following is rational?

• .211232112421125. . . .
• π
• √25
• √12

Between which two whole numbers is the
√5?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 5

List the following numbers from least to greatest:
-64 , 3.5 , √27 , 6.666...

• -64 , 3.5 , √27 , 6.666...
• 3.5 , √27 , 6.666..., -64
• 3.5, -64, √27, 6.666...
• 6.666, √27, -64, 3.5

Point B could represent which of the following numbers?

• √24
• √30
• √35
• √42

Round to the Nearest Tenth: √28

• 5.6
• 5.9
• 5.3
• 8