AQA 8525 3.3.4: Binary arithmetic
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
A processor does arithmetic in binary. This lesson adds binary numbers the way the processor does, sees what happens when the answer is too big for the bits available, and meets the fastest multiplication there is: shifting.
- Adding binary
- Overflow
- Shifts
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- F8.4 Binary addition, overflow and shifts Data representation
Adding in binary with carries, overflow, and shifting to multiply and divide.
Try it on a robot
The task from F8.4 Binary addition, overflow and shifts, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 3.3.4 and is not endorsed by the board.