AQA A’Level SLR11 Two’s complement
About this video
AQA Specification Reference
AS Level 3.5.4.3
A Level 4.5.4.3
Binary needs to be able to represent negative as well as positive numbers, in this video we take a look at one method of doing this known as Two's complement.
Key questions:
- How do we represent negative numbers in binary using the two's complement method?
- How do you perform subtraction using two's complement?
00:00 Two's complement
00:07 Intro
00:12 Imagine a car's milometer
00:49 Representing a negative number in binary
01:10 Two's complement
02:57 Converting positive numbers into negative numbers using two's complement
04:11 Subtraction with two 8-bit binary integers
06:06 Key questions
06:20 Outro
Last updated: 08.05.25
