Question Bank for Grade 9 Mathematics

Which of these is an example of a rational number?

• √4

• √5

• √3

• √2

Which of these is an example of an irrational number?

• √2

• √1

• √9

• √25

Select the irrational numbers

• 2

• 2.3454128904

A rational number can be written as a fraction.

• true

• false

includes integers, fractions, terminating and repeating decimals.

• Rational Numbers
• Irrational Numbers

.141414141414...

• Rational 
• Irrational 

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.

Which number is an irrational number?

• 2.5
• 5.72314.....
• -17
• 1/2

• rational

• irrational

When you add two rational numbers, the sum is...

• always rational

• sometimes rational, sometimes irrational

• always irrational

• never rational