Overview Of Number Bases II - SS3 ICT Past Questions and Answers - page 1
What is the base of the binary number system?
2
8
10
16
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Which base uses only digits 0-7?
Binary
Octal
Hexadecimal
Decimal
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What is the result of 1011 (Binary) + 1101 (Binary)?
1100 (Binary)
10110 (Binary)
10100 (Binary)
11000 (Binary)
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In octal addition, what happens when the sum exceeds 7 in a place value?
You subtract 7
You carry over to the next place
It is not possible
You ignore the extra value
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What is the result of 57 (Octal) + 35 (Octal)?
112 (Octal)
92 (Octal)
82 (Octal)
122 (Octal)
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How do you represent the decimal number 13 in hexadecimal?
D
10
13
15
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What does borrowing mean in subtraction?
Taking a loan
Carrying over from a higher place value
Giving away numbers
None of the above
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What is the result of 10010 (Binary) - 1101 (Binary)?
101 (Binary)
1101 (Binary)
1111 (Binary)
1001 (Binary)
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In octal subtraction, what do you do if the number on the right is larger than the number on the left?
Nothing, it's an invalid operation
Borrow from the next place
Add them together
Subtract normally
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What is the result of 77 (Octal) - 45 (Octal)?
36 (Octal)
34 (Octal)
42 (Octal)
32 (Octal)
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