Practice 2’s Complement (1.1.8.3) - Number Systems - Part A - Digital Electronics - Vol 1
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2’s Complement

Practice - 2’s Complement

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the 2's complement representation of +5?

💡 Hint: Remember, positive numbers are straightforward in binary.

Question 2 Easy

Convert +3 to 2's complement.

💡 Hint: Convert it directly to binary.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the MSB signify in 2's complement?

Positive sign
Negative sign
Neutral sign

💡 Hint: Remember how the first bit determines positivity or negativity.

Question 2

True or False: The 2's complement allows for easy addition and subtraction.

True
False

💡 Hint: Consider how addition is performed without needing to account for different signs uniquely.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Using an 8-bit 2's complement, find the result of adding +5 and -3. Write down all steps.

💡 Hint: Don't forget to convert both numbers correctly first.

Challenge 2 Hard

If an 8-bit register yields the result 00001010 after an addition, what are the decimal values of the added numbers if one was negative?

💡 Hint: Think through how to reverse engineer the addition using 2’s complement.

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Reference links

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