NumberSystems.study is a site I made to provide an endless supply of self-marking number systems practice questions in an academic format. Questions are generally limited to 0-255 / 8 bits, apart from floating-point binary. Read the teacher guide.
Available question types#
- Denary to Binary
- Binary to Denary
- Denary to Hexadecimal
- Hexadecimal to Denary
- Hexadecimal to Binary
- Binary to Hexadecimal
- Binary Addition
- Binary shift
- Binary Subtraction
- Binary Multiplication
- To two’s complement
- From two’s complement
- To fixed-point
- From fixed-point
- To floating-point
- From floating-point
Pedagogical use#
I’ve used it successfully for lesson starters or do now activities, along with plenaries or exit tickets. Particularly creating custom Question sets such as this one for OCR GCSE Computer Science or this one for the new operations in AQA A-level Computer Science.
Students see their progress and can share it with their teacher in a digital workbook.