A digital sensor outputs a data reading represented as the hexadecimal number 2D2\text{D}2D.
Convert this hexadecimal value to its binary representation, and then convert that binary value to its denary (base 10) equivalent.
117 exam-style questions on Edexcel GCSE Computer Science Binary, covering Binary representation and number of states, Unsigned and two's complement integers, Converting denary and 8-bit binary, Binary addition and binary shifts, Concept of overflow, and Hexadecimal notation and conversion. Each one has a worked solution and a mark scheme showing where the marks go.