Practice Addition And Subtraction (3.7.1) - Digital Arithmetic - Part B
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Addition and Subtraction

Practice - Addition and Subtraction

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Convert the BCD number (5) to excess-3 code.

💡 Hint: Remember to add '0011' to the BCD.

Question 2 Easy

What is the result of adding (0011) + (0011) in BCD?

💡 Hint: Perform a binary addition and consider carry adjustments.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the excess-3 code for BCD number 7?

0111
1010
1000

💡 Hint: Think of 7 in BCD and remember to add 3.

Question 2

True or False: The process of adding BCD numbers in excess-3 never requires adjustment.

True
False

💡 Hint: Consider the scenarios when a carry occurs.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Demonstrate addition of BCD 245 and 634 via excess-3 conversion. Confirm if the result matches the decimal addition.

💡 Hint: Focus on each four-bit group's carry.

Challenge 2 Hard

Subtract (1010) from (150) in BCD using the excess-3 method. Confirm the result through both binary subtraction and resultant BCD conversions.

💡 Hint: Watch out for borrows in your calculations!

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