Number Systems Practice
Interactive GCSE Computer Science tools for binary, hexadecimal and two’s complement.
Denary to Binary
Convert denary numbers to binary and vice versa
Binary Addition
Add binary numbers with carry & fixed width
Two’s Complement Converter
Convert between decimal and two’s complement
Guess the Negative
Identify negative values in binary
Hexadecimal Conversion
Binary ⇄ hexadecimal practice