Free Printable number system

1.

“The product of two consecutive positive integers is divisible by 2”. Is this statement true or false?

a)

true

b)

false

2.

3 × 5 × 7 + 7 is a composite number

a)

true

b)

false

3.

Classify this number: √10

a)

real

b)

real rational

c)

real irrational

d)

real rational integer

4.

In the following rational is.......

a)

0.211232112421125. . . .

b)

π

c)

√25

d)

√12

5.

In the following numbers, irrational is......

a)

√8

b)

\frac{3}{4}

c)

2

d)

-1.325

6.

Classify this number: 2

a)

real

b)

real rational

c)

real rational integer

d)

real rational integer whole

7.

If p & q are two co-prime numbers then HCF (p, q) =?

a)

pq

b)

p

c)

q

d)

1

8.

$The\ decimal\ representation\ of\ \frac{1}{2^3\times5}$

will terminate after ___ decimal places.

a)

3

b)

1

c)

4

d)

None of these

9.

Which of the following is rational?

a)

$\sqrt{6}$ + $\sqrt{9}$

b)

$\sqrt{2}$ + $\sqrt{4}$

c)

$\sqrt{4}$ + undefined

d)

$\sqrt{3}$ + undefined

10.

Given that HCF (253, 440)= 11 and LCM (253, 440) = 253 x R. The value of R is:

a)

400

b)

40

c)

440

d)

253

11.

The number system we use from our childhood is decimal number system.

a)

True

b)

False

12.

What is the number system the computer can understand?

a)

Decimal

b)

Binary

c)

Hexadecimal

d)

Octal

13.

The product of two irrational number is always_____

a)

An irrational number

b)

A rational number

c)

Sometimes rational, sometimes irrational

d)

An integer

14.

Decimal representation of a rational number cannot be_____

a)

Terminating

b)

Non-terminating

c)

Non-terminating and repeating

d)

Non-terminating and non-repeating

15.

a)

(3)²¹

b)

(3)^-21

c)

(3)¹⁰

d)

(3)^-10

16.

Say 'TRUE' or 'FALSE'
Every irrational number is a real number

a)

TRUE

b)

FALSE

number system

Total questions: 16

Worksheet time: 9mins

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