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Lesson details

Key learning points

  1. In this lesson, we will learn what a surd is and we will explore how to accurately estimate the value of a surd.

Licence

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

6 Questions

Q1.
√9 is a surd
Correct answer: False
Option 3
Option 4
Option 5
True
Q2.
Which of the following is a surd
A
B
Correct answer: C
D
Q3.
Which on the following is NOT a surd
Correct answer: A
B
C
D
Q4.
Which of the following is a surd?
A
B
Correct answer: C
D
Q5.
Evaluate √49
24.5
Correct answer: 7
98
Q6.
Estimate √57
28.2
28.5
7.2
Correct answer: 7.5

Lesson appears in

UnitMaths / Surds and trigonometry