Practice Subtraction Using 2’s Complement Arithmetic (3.3.1) - Digital Arithmetic - Part A
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Subtraction Using 2’s Complement Arithmetic

Practice - Subtraction Using 2’s Complement Arithmetic

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the 2’s complement of the binary number 00001110?

💡 Hint: Invert the bits and add 1.

Question 2 Easy

What binary number represents +10 in 4-bit format?

💡 Hint: Count in binary until you reach 10.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the first step to subtract using 2's complement?

Add the minuend and subtrahend directly.
Find the 2's complement of the subtrahend.
Ignore the final carry.

💡 Hint: Think about how we represent negative numbers.

Question 2

When is the result in 2's complement representation negative?

True
False

💡 Hint: Check the first bit of the result.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A store has 62 apples (00111110) and gives away 75 apples (01001011). Using 2's complement, how many apples are left?

💡 Hint: Calculate 2's complement and remember the sign bit.

Challenge 2 Hard

Subtract 50 from 30 using 8-bit 2’s complement arithmetic, providing all steps.

💡 Hint: Pay attention to the sign after your computation.

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Reference links

Supplementary resources to enhance your learning experience.