Year 9
Year 9

Rational and irrational numbers

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Lesson details

Key learning points

  1. In this lesson, we will explore the concept of rationality and irrationality in numbers, and learn how to classify rational and irrational numbers.

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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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7 Questions

Q1.
All integers are rational numbers
False
Correct answer: True
Q2.
Recurring decimals such as 0.3333.... are considered as irrational numbers.
Correct answer: False
True
Q3.
Which of these is an irrational number?
A
B
C
Correct answer: D
Q4.
Which of these is an irrational number?
A
B
Correct answer: C
D
Q5.
All rational numbers can be written as a fraction.
False
Correct answer: True
Q6.
The square root of all square numbers are irrational numbers.
Correct answer: False
True
Q7.
Which of these is a rational number?
A
Correct answer: B
C
D