Data Representation - Twos Compliment (GCSE Computing)

The following is a GCSE Computing test covering 'Data Representation - Twos Compliment'

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Question 1

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What is the 8-bit two`s complement result of 11110010 + 00001101?

Which 8-bit two`s complement number has the same numeric value as its unsigned interpretation?

What is the 8-bit two`s complement representation of decimal -1?

Which 8-bit two`s complement binary represents decimal -128?

What is the decimal value of 6-bit two`s complement number 110101?

Which 8-bit two`s complement binary represents zero?

What is the 8-bit two`s complement representation of decimal -45?

What is the decimal value of 8-bit two`s complement 10101010?

How can overflow be detected when adding two`s complement numbers?

What is the 8-bit two`s complement representation of decimal -100?

For n-bit two`s complement numbers, what is the representable range?

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