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WorksheetsHigher Computing Science - Floating Point
Total questions: 10
Worksheet time: 5mins
Select the three components of a floating point number
Mantissa
Exponent
Sign bit
Accuracy bit
Which of the following combinations correctly represent 0.0 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0000 and 0000 0000
1 000 0000 and 0000 0000
0 000 0000 and 0000 0001
1 000 0000 and 0000 0001
Which of the following combinations correctly represent 0.5 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0001 and 0000 0001
0 000 0001 and 0000 0000
0 100 0000 and 0000 0001
0 100 0000 and 0000 0000
Which of the following combinations correctly represent 1 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0001 and 0000 0001
1 000 0001 and 0000 0000
0 100 0000 and 0000 0001
0 100 0000 and 0000 0000
Which of the following combinations correctly represent 1.5 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0011 and 0000 0001
0 110 0000 and 0000 0001
1 100 0000 and 0000 0001
0 110 0000 and 0000 0000
Which of the following combinations correctly represent 3 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0011 and 0000 0010
0 110 0000 and 0000 0001
0 110 0000 and 0000 0000
0 110 0000 and 0000 0010
Which of the following combinations correctly represent 0.75 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 000 0011 and 0000 0010
0 110 0000 and 0000 0001
0 110 0000 and 0000 0000
0 110 0000 and 0000 0010
Which of the following combinations correctly represent 4.25 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 100 1000 and 0000 0011
0 100 0100 and 0000 0011
0 100 1000 and 0000 0100
0 100 0100 and 0000 0100
Which of the following combinations correctly represent 7.125 using floating-point? (There is an 8 bit mantissa and 8 bit exponent)
0 111 0010 and 0000 0011
1 110 0100 and 0000 0011
0 111 0010 and 0000 0010
0 111 0010 and 0000 0101
Have these questions helped you improve your confidence and understanding of floating point representation?
Yes - a lot
Yes - a little
No
