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Worksheets

Bin ary

Total questions: 33

Worksheet time: 3mins

Name
Class
Date
1.

10101101

a)

173

b)

165

c)

123

d)

89

2.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
3.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
4.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
5.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
6.
Convert 196 to binary
a)
11000110
b)
11100100
c)
11000100
d)
11010100
7.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
8.
Convert 11001100 to decimal
a)
224
b)
134
c)
104
d)
204
9.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
10.
Convert 00100100 to decimal
a)
26
b)
36
c)
46
d)
56
11.
Convert 01000100 to decimal
a)
58
b)
68
c)
78
d)
88
12.
What are the only two numbers you can use in binary?
a)
0 and 1
b)
1 and 2
c)
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
d)
1, 2, 4, 8, 16
13.
Which of these is the correct sequence for the place values for binary numbers?
a)
1, 2, 4, 8, 16, 32, 64, 128
b)
1, 2, 4, 6, 8, 10, 12, 14, 16
c)
1, 2, 3, 4, 5, 6, 7, 8
d)
0, 1
14.
What is the denary number system?
a)
It counts the number of dens
b)
Our usual base 10 number system
c)
A special number system for computers
d)
Den Ary's number system
15.
What is the point of binary?
a)
It represents how computers interpret electrical signals
b)
Because we like to make you do extra maths ;-D
c)
For the lulz
d)
Because it describes star systems
16.
What is 1011 in denary?
a)
11
b)
14
c)
26
d)
1011
17.
Binary is:
a)
a system using the digits 0 and 1 to represent a letter, digit, or other character in a computer or other electronic device.
b)
the most common format for text files in computers and on the Internet
18.
True or False: The binary number for a capital 'A' is the same as the binary number for a lower-case 'a'?
a)
True
b)
False
19.
Binary uses 1’s & 0’s to represent data
a)
True
b)
False
20.
What kind of data does a computer represent with binary?
a)
numbers
b)
letters
c)
pictures
d)
all of the above
21.

What kind of 'base' system is binary known as?

a)

Base 12

b)

Base 8

c)

Base 2

d)

Base 10

22.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
23.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
24.
Convert 196 to binary
a)
11000110
b)
11100100
c)
11000100
d)
11010100
25.
Convert 11001100 to decimal
a)
224
b)
134
c)
104
d)
204
26.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
27.
Convert 00100100 to decimal
a)
26
b)
36
c)
46
d)
56
28.
Convert 01000100 to decimal
a)
58
b)
68
c)
78
d)
88
29.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
30.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
31.
If a binary number ends with a 1, it must be...
a)
An odd number
b)
An even number
c)
A prime number
d)
The number 12
32.
Which of these is the correct sequence for the place values for binary numbers?
a)
1, 2, 4, 8, 16, 32, 64, 128
b)
1, 2, 4, 6, 8, 10, 12, 14, 16
c)
1, 2, 3, 4, 5, 6, 7, 8
d)
0, 1
33.

Add the following binary numbers:

01

11

a)

101

b)

11

c)

111

d)

100