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9th
-
12th
grade

Mathematics

69%

accuracy

34

plays

User image

5 years

Mathematics

9th -

12thgrade

Surds Revision

user

34
plays

8 questions

8 questions

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1. Multiple Choice
2 minutes
1 pt
Simplify fully:
$\sqrt{120}$
$4\sqrt{30}$
$2\sqrt{30}$
$12\sqrt{10}$
$6\sqrt{10}$
2. Multiple Choice
3 minutes
1 pt
Simplify fully:
$\sqrt{32}+5\sqrt{32}$
$6\sqrt{32}$
$24\sqrt{8}$
$24\sqrt{2}$
$6\sqrt{8}$
3. Multiple Choice
5 minutes
1 pt
Simplify fully:
$2\sqrt{45}-5\sqrt{45}+9\sqrt{16}$
$-9\sqrt{5}+36$
$-3\sqrt{45}+144$
$6\sqrt{16}$
$6\sqrt{106}$
4. Multiple Choice
3 minutes
1 pt
Rationalise the Denominator:

$\frac{3}{\sqrt{5}}$
$\frac{3\sqrt{5}}{5}$
$\frac{3\sqrt{5}}{25}$
$\frac{\sqrt{5}}{5}$
$\frac{\sqrt{5}}{3}$
5. Multiple Choice
5 minutes
1 pt
Rationalise the Denominator
$\frac{3+\sqrt{4}}{\sqrt{2}}$
$\frac{5\sqrt{2}}{2}$
$\frac{3\sqrt{2}+\sqrt{8}}{2}$
$\frac{3\sqrt{2}+\sqrt{8}}{4}$
$\frac{3\sqrt{2}+\sqrt{3}}{2}$
6. Multiple Choice
5 minutes
1 pt
Which one would you multiply by to rationalise this denominator:
$\frac{1}{\sqrt{2}-1}$
$\sqrt{2}-1$
$\sqrt{2}$
$\sqrt{2}+1$
$1-\sqrt{2}$
7. Multiple Choice
3 minutes
1 pt
Simplify the expression $\left(5+\sqrt{3}\right)\left(4\sqrt{3}-3\right)$
-15 + 8√9
9
2 + 8√3 + 6√6
9 + 14√3
8. Multiple Choice
5 minutes
1 pt
$\frac{\sqrt{2}+3}{2\sqrt{2}+3}$
Rationalize:
$\frac{1-2\sqrt{2}}{3}$
$\frac{15\sqrt{2}-33}{23}$
$\frac{3+6\sqrt{2}}{9}$
$\frac{2\sqrt{3}-1}{9}$
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