Free Printable Don't be Irrational!

1.

The square root of 53 is between which two consecutive numbers?

a)

10 and 11

b)

5 and 6

c)

7 and 8

d)

1 and 2

2.

The square root of 36 is ...

a)

rational

b)

irrational

c)

I have no idea

d)

Purple

3.

Which number is an irrational number?

a)

2.5

b)

5.72314.....

c)

-17

d)

1/2

4.

Which of the following numbers is irrational?

a)

√8

b)

¾

c)

2

d)

-1.325

5.

Which of the following numbers is rational?

a)

√8

b)

√16

c)

√50

d)

√75

6.

Select the answer that is a true statement about $\pi+\pi$

a)

$\pi+\pi=6.28$

b)

$\pi+\pi<3+3$

c)

$\pi+\pi>4+4$

d)

$\pi+\pi$ is between 6 and 8.

7.

Select the true statement.

a)

$5\pi=5\times3.14$

b)

$5\pi$ is between 5x3 and 5x4

c)

$5\pi$ is a rational number

d)

$5\pi>20$

8.

Select the true statement

a)

$\sqrt{49}+\sqrt{50}=\sqrt{99}$

b)

$\sqrt{49}+\sqrt{50}<10$

c)

$\sqrt{49}+\sqrt{50}>14$

d)

$\sqrt{49}+\sqrt{50}$ is a rational number

9.

Select the true statement below.

a)

$2\sqrt{44}=88$

b)

$2\sqrt{44}$ is a rational number

c)

$2\sqrt{44}=2\times22$

d)

$2\sqrt{44}$ is between 12 and 14

10.

Select the largest value.

a)

$2\pi$

b)

$\sqrt{7}$

c)

$\sqrt{5}+\sqrt{5}$

d)

$\sqrt{9}$

11.

$\sqrt{121}$

a)

rational

b)

irrational

12.

$\frac{1}{5}$

a)

rational

b)

irrational

13.

$4.532$

a)

rational

b)

irrational

14.

$\sqrt{\frac{4}{9}}$

a)

rational

b)

irrational

15.

$\sqrt{45}$

a)

rational

b)

irrational

Don't be Irrational!

Total questions: 15

Worksheet time: 13mins

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