In this video, how to perform binary addition and subtraction is explained with the help of a few examples.

Timestamps for the topics covered in the video:
0:00 Introduction
0:45 Binary Addition Rules
2:17 Binary Addition (Example 1)
4:25 Fractional Binary Number Addition (Example 2)
6:25 Binary Subtraction Rules
11:14 Binary Subtraction (Example 3)
13:57 Binary Subtraction (Example 4)

Binary Addition and Subtraction:

All digital circuits work in a binary number system and therefore all the arithmetic operations are also performed in the binary.

Rules for Binary Addition
0 + 0 = 0
0 + 1 = 1
1 + 0 = 1
1 + 1 = 0 (with 1 carry)

Rules for Binary Subtraciton:
0 - 0 = 0
1- 0 = 1
1- 1 = 0
0 -1 = 1 (with 1 borrow)
The other useful videos related to Binary Number System:
1) Binary to Decimal Conversion
https://youtu.be/XrSgsJ-28Do
2) Decimal to Binary Conversion
https://youtu.be/QAHyFa3gKKc