Question 1

Order $-4, -\sqrt{17}, -3, -\sqrt{12}$    in ascending order of size

Accepted Answer

$-\sqrt{17} , -4,  -\sqrt{12} , -3$

Answer

$-\sqrt{12},  -4, -3,  -\sqrt{17} $

Answer

$-\sqrt{17} , -4, -3,  -\sqrt{12} $

Answer

$ -4, -3,  -\sqrt{12}, -\sqrt{17} $

Question 2

Find the natural number a that satisfies $\sqrt{42} \leqslant a \leqslant 9$

Accepted Answer

7, 8, 9

Answer

5, 6, 7

Answer

8, 9, 10

Answer

6, 7, 8

Question 3

Find the first decimal place of $\sqrt{10}$.

Accepted Answer

1

Answer

3

Answer

4

Answer

2

Question 4

Calculate $(\frac{20}{\sqrt5}-\sqrt{180})	imes \sqrt{10} + \sqrt{128}$

Accepted Answer

$-2\sqrt{2}$

Answer

$2\sqrt{2}$

Answer

$4\sqrt{2}$

Answer

$-4\sqrt{2}$

Question 5

Find the value of $x^2 +2xy + y^2$ when $ x+y = 2\sqrt{3}$.

Accepted Answer

12

Answer

10

Answer

9

Answer

11

Question 6

Find the smallest value of the natural number n  given that $\sqrt{80n}$ gives an integer value.

Accepted Answer

5

Answer

6

Answer

4

Answer

3

Question 7

Find all the values for natural number n if $\sqrt{42-3n}$ gives an integer value.

Accepted Answer

2, 11, 14

Answer

11, 14, 16

Answer

2, 11

Answer

11, 14

Question 8

When $\sqrt{\frac{45n}{7}}$ is an integer, find the smallest value for natural number n.

Accepted Answer

35

Answer

5

Answer

7

Answer

25

Question 9

Find all the values for natural number n that satisfy $7 < \sqrt{5n} < 8$.

Accepted Answer

10, 11, 12

Answer

9, 10, 11, 12

Answer

10, 11, 12, 13

Answer

9, 10, 11

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