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Worksheets

Number Systems

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the binary equivalent of the decimal number 13?

a)

1100

b)

1101

c)

1011

d)

1110

2.

Convert the decimal number 45 to binary.

a)

101101

b)

110101

c)

101011

d)

111001

3.

Which of the following is a valid hexadecimal number?

a)

1G5

b)

2F3

c)

3Z9

d)

4H2

4.

What is the decimal equivalent of the binary number 1010?

a)

8

b)

9

c)

10

d)

11

5.

How many bits are there in a byte?

a)

4

b)

8

c)

16

d)

32

6.

What is the result of the binary addition: 1011 + 1101?

a)

11000

b)

10100

c)

10010

d)

11110

7.

Convert the hexadecimal number A3 to decimal.

a)

163

b)

173

c)

183

d)

193

8.

What is the binary representation of the hexadecimal number F?

a)

1110

b)

1111

c)

1101

d)

1011

9.

Which operation is performed by the binary number system when two 1s are added?

a)

0 with a carry of 1

b)

1 with a carry of 0

c)

1 with a carry of 1

d)

0 with a carry of 0

10.

What is the hexadecimal equivalent of the binary number 11011010?

a)

DA

b)

DB

c)

DC

d)

DD

11.

Convert the decimal number 255 to hexadecimal.

a)

FF

b)

FE

c)

FD

d)

FC

12.

What is the result of the binary subtraction: 1010 - 0110?

a)

0011

b)

0100

c)

0111

d)

1000

13.

Which of the following is not a valid binary number?

a)

101010

b)

110011

c)

100102

d)

111000

14.

What is the binary equivalent of the decimal number 100?

a)

1100100

b)

1010100

c)

1110100

d)

1000100

15.

Convert the binary number 1111 to decimal.

a)

14

b)

15

c)

16

d)

17