Unit 1 test Review Grade 8

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.

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

√7

• Rational 
• Irrational

√25

• Rational
• Irrational

Write 5/9 as a decimal.

• 0.59
• 0.95
• 0.555...
• 1.8

• 1/2
• 1/10
• 1/100
• 1/9

• 7/50
• 14/9
• 7/45
• 14/99

• 77/25
• 77/250
• 308/9
• 308/999