Year 9
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Lesson details
Key learning points
- 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
Q2.
Recurring decimals such as 0.3333.... are considered as irrational numbers.
True
Q3.
Which of these is an irrational number?
A
B
C
Q4.
Which of these is an irrational number?
A
B
D
Q5.
All rational numbers can be written as a fraction.
False
Q6.
The square root of all square numbers are irrational numbers.
True
Q7.
Which of these is a rational number?
A
C
D
6 Questions
Q1.
√9 is a surd
Option 3
Option 4
Option 5
True
Q2.
Which of the following is a surd
A
B
D
Q3.
Which on the following is NOT a surd
B
C
D
Q4.
Which of the following is a surd?
A
B
D
Q5.
Evaluate √49
24.5
98
Q6.
Estimate √57
28.2
28.5
7.2