Indices and Radicals
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Lesson details
Key learning points
- In this lesson, we will recap our knowledge of surds. We will rewrite surds in their simplest form and recall how to rationalise the denominator. We will also practise organising surds in order of ascending size.
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7 Questions
Q1.
Simplify fully √𝟕2
3√8
36√2
6+√2
Q2.
Who is correct?
Neither is correct
Only Ant
Only Dec
Q3.
Jack and Jill are arguing about surds. Jack says: √4 x √12 = √48. Jill says: √4 x √12 = 3√4. Who is correct?
Both Jack and Jill
Neither is correct
Only Jill
Q4.
Simplify √10 - √3
√30
√7
10√3
Q5.
Simplify, if possible: √8 + √50
√58
8√50
Cannot be simplified
Q6.
Which of the following is NOT a surd?
√102
√103
√104
Q7.
Simplify: 15√14 ÷ 3√2
35
5 + 7√2
5√2