Lesson 1 Review

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 fraction.
• A rational number cannot be a repeating  decimal.

What type of number is π ?

• Rational
• Irrational

Which number is irrational?

• 9.6
• √45
• 3/8
• 3.4 x 10 ⁵

Which number is a rational number ?

• 1/4
• π
• √3
• ∛25

.141414141414...

• Rational 
• Irrational 

The decimal of an irrational number doesn't repeat with a pattern.

• true
• false

Convert 0.444... to a fraction.

• 4/10
• 4.4/99
• 4/9
• 2/5

Convert 0.252525... to a fraction.

• 25/9
• 25/99
• 25/100
• 1/4

Convert 0.769769769... to a fraction.

• 769/999
• 769/1000
• 769/100
• 769/99

• 77/25
• 77/250
• 308/9
• 308/999