This document provides a series of 2's complement binary conversion exercises. Students are asked to: 1) Convert given decimal numbers to binary and add the results, showing work. 2) Convert additional numbers to binary and add, showing work. 3) Convert further numbers and add in binary, showing final binary and decimal answers. 4) Do another binary conversion and addition problem, showing final results. The purpose is to practice converting numbers to binary using 2's complement and performing additions on the results.

1. 2’s Complement Exercises PLTW - Digital Electronics
Saved As: 2scomplementbinary-150913120151-lva1-app6892 1
Name: ________________________________________
Utilizing the 2’s complement convert the following in to binary and give you answer in both
binary and decimal!
1.) Convert the number (+12) into binary … __________________________________
Convert the number (-15) into binary … ___________________________________
Now add the binary answers from questions (1) and (2). Show your work.
Binary answer: _____________________ Decimal answer: ______________________
2.) Convert the number (-22) into binary … __________________________________
Convert the number (-33) into binary … ___________________________________
Now add the binary answers from questions (1) and (2). Show your work.
Binary answer: _____________________ Decimal answer: ______________________

2. 2’s Complement Exercises PLTW - Digital Electronics
Saved As: 2scomplementbinary-150913120151-lva1-app6892 2
Utilizing the 2’s complement convert the following in to binary and give you answer in both
binary and decimal!
3.) Convert the number (-41) into binary … __________________________________
Convert the number (+38) into binary … ___________________________________
Now add the binary answers from questions (1) and (2). Show your work.
Binary answer: _____________________ Decimal answer: ______________________
4.) Convert the number (-52) into binary … __________________________________
Convert the number (-23) into binary … ___________________________________
Now add the binary answers from questions (1) and (2). Show your work.
Binary answer: _____________________ Decimal answer: ______________________