A level Computing: Floating Point Numbers

Zacchaeus Snape
Quiz by , created about 5 years ago

A quiz to test your knowledge of floating point numbers. This quiz uses 16 bits for the floating point number, with 10 bits used for the mantissa and 6 for the exponent.

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Zacchaeus Snape
Created by Zacchaeus Snape about 5 years ago
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Question 1

Question
Work out the binary floating point for: 5.625
Answer
  • 0000000101 0101
  • 0000000011 0111
  • 0000000101 1101
  • 1000000101 1011

Question 2

Question
A 1 at the beginning of a mantissa means the number is positive
Answer
  • True
  • False

Question 3

Question
Write the binary floating point number 0100100011 1011 in denary
Answer
  • 547
  • 9.046875
  • 9.25
  • 1028

Question 4

Question
What is the denary equivalent of an exponent of 1111?
Answer
  • 15
  • 7
  • -1
  • -4

Question 5

Question
A negative exponent means you move the decimal point to the left
Answer
  • True
  • False