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Computers, Science, Mathematics
10th -
12thgrade
Number Systems & Binary Maths
22 questions
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- 1. Multiple Choice
A Base 2 number system is commonly known as
Hexadecimal
Binary
Boolean
Denary
- 2. Multiple Choice
In computers the binary numbers represent
Nybles
Bytes
Bits
gates
- 3. Multiple Choice
Binary numbers can contain
1 and 0
1 and 2
2 and 0
0 or 1 and 2
- 4. Multiple Choice
What is the binary number for decimal 10
00010100
00008020
00001010
00000101
- 5. Multiple Choice
Convert the binary number 00100110 to decimal
36
37
38
39
- 6. Multiple Choice
Add the binary numbers 00001010 and 00001010
00011000
00100100
00010100
00001100
- 7. Multiple Choice
00101000 + 00010010 = decimal ?
28
38
48
58
- 8. Multiple Choice
When multiplying binary the bits are shifted
to the left
and carry 1
to the right
up and down
- 9. Multiple Choice
when multiplying a binary number by 2 the bits are shifted
one place to the right
one place to the left
two places to the right
two places to the left
- 10. Multiple Choice
when mulitplying a binary number by 8 the bits are shifted
8 places left
3 places left
4 places right
8 places right
- 11. Multiple Choice
Multiply 00001010 by 4
10101000
00000101
00010100
00101000
- 12. Multiple Choice
Is this signed binary number positive or negative? 10010100
Negative
Positive
its neutral
either
- 13. Multiple Choice
what is the decimal value of the signed binary number 01000110
-70
+60
60
+70
- 14. Multiple Choice
To convert a positive binary number to a negative Two's Complement number
shift the bits left and add 1
flip the bits
flip the bits and add 1
shift the bits left and flip them
- 15. Multiple Choice
in a signed binary number, if the leftmost bit is 1 it tells us
that the number has at least 128 in it
that the number has 7 bits that count
that the number is negative
that the number is positive
- 16. Multiple Choice
In a signed binary 8 bit number the 8th bit
is worth 128 decimal
only tells us the sign and is not incuded in the number total
is always 1
is always 0
- 17. Multiple Choice
To subtract denary numbers , 20-10, as binary numbers using the Two's Complement method
calculate 10 as binary and add to 20 as binary
calculate 20 as binary and -10 as binary and add them.
work out 20 as binary and flip the bits
flip the bits and add 1 then divide by 10
- 18. Multiple Choice
Convert the binary number 00010100 to a Two's Complement negative number
11101011
00101000
11101100
10010100
- 19. Multiple Choice
A natural number is
A whole number shown as Z in maths
A decimal number shown as Z in maths
An integer and shown as N in maths
Occurs naturaly in every day life
- 20. Multiple Choice
A Rational number is
a number that makes sense
a prime number
an integer
a number that can be written as a fraction or a ratio
- 21. Multiple Choice
Rational number ranges are shown by the letter
Z
Q
N
R
- 22. Multiple Choice
Pi is an example of ...
a ratonal number
an irrational number
an integer
a natural number
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