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Lesson details
Key learning points
- In this lesson, we will learn how to add two surds where you may need to simplify at least one surd prior to adding.
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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3 Questions
Q1.
Simplify 6√2 - 4√2
√2
10√2
2
Q2.
Simplify 6√7 - 5√7
11√14
30√7
Option 4
Q3.
A piece of wood is shown. It is 7√5 m long. A piece of length 2√5 m is cut away. How long is the piece of wood now?
14√5 m
15√5 m
9√5 m
3 Questions
Q1.
Which calculation can be simplified further?
A
C
D
Q2.
Simplify √12 + √27
√12 + √27
√39
2√3 + 3√3
Q3.
Simplify fully 3√8 + √50
2√11
3√58
7√2