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QUIZ

8th
grade

Mathematics

53%

accuracy

113

plays

User image

4 years

Mathematics

8th

grade

Surds

user

113
plays

10 questions

10 questions

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1. Multiple Choice
1 minute
1 pt
$2√32-√50+√98$
$√2$
$10√2$
$56√2$
$700√2$
2. Multiple Choice
1 minute
1 pt
1. If a and b are positive integers, which of the following is/are correct?

$I.\sqrt{a^2+b^2}=a+b$

$II.\sqrt{a^2b^2}=ab$
$III.\sqrt{2a^2b}\times\sqrt{6a^3b}=2a^2b\sqrt{3a}$

II only
III only
II and III only
I, II and III
3. Multiple Choice
1 minute
1 pt
A
B
C
D
4. Multiple Choice
2 minutes
1 pt
Simplify fully:
2√45 - 5√45 + 9√16
-9√5 + 36
-3√45 + 144
6√16
6√106
5. Multiple Choice
30 seconds
1 pt
Simplify fully:
√216
2√108
4√54
6√6
18√6
6. Multiple Choice
5 minutes
1 pt
Expand and simplify ...

(2 + √3)(1 + √3)
5 + 3√3
2 + 3√3
5 + √3
11 + 3√3
7. Multiple Choice
5 minutes
1 pt
Expand and simplify ...

(2 + 2√3)(1 + 4√3)
26 + 10√3
26 + 6√3
5 + 10√3
5 + 6√3
8. Multiple Choice
30 seconds
1 pt
a)
b)
c)
d)
9. Multiple Choice
30 seconds
1 pt
a)
b)
c)
d)
10. Multiple Choice
30 seconds
1 pt
a)
b)
c)
d)
Answer choices
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