A fun spy-themed worksheet with two activities to help pupils practise converting binary to denary and denary to binary and designed to appeal to younger learners. Includes a grid representing the values of each binary digit to help calculate the answers and an answer sheet for reference or self-marking. “Rainbow Team of secret agents store their phone numbers as binary code to keep them secret. Can you help the new agent work out his colleagues’ numbers?”

A fun spy-themed worksheet with three activities which enable learners to practise converting binary code to letters. A Top Secret Code sheet is provided to help pupils complete the activities. Answers are included for self-marking or independent learning. Help Agent Green to decipher the secret messages left by his colleagues in binary code. Help Agent Green to write a message to his boss in binary code. Use the Top Secret Code sheet to discover the pattern in the binary code and use it to make predictions.