## AQA Computer Science GCSE

**July 2019:**the AQA CompSci area is almost complete. Most of the content for units 3-6 is now up and there's quite a lot of Unit 7 material. There's still some work to do, particularly on Paper 1 units, but it's getting there.

### Data Representation - Binary Maths

You need to be able to add together binary numbers and use binary shifts. Neither of these are too tricky, but you need to work on them.

#### Binary Addition

You need to be able to add together up to three binary numbers.

Binary Addition - how to do it

Binary Addition - adding 3 numbers together

Binary Addition Questions - AQA exam style questions

#### Binary Shifts

Binary shifts can be used to multiply and divide by factors of 2. The way questions are asked on them can be quite tricky at times.

Binary Shifts - presentation used in class

Binary Shifts - summary - a summary of how shifts work

Binary Maths Questions 3 - addition and binary shifts