I love code-breakers. They are a great way for students to check their own answers without them being able see all the answers right from the start. It also makes marking easy because for a whole lesson's worth of work you only check four or five words.
This resource automatically creates a code breaker for any set of questions! Its really good for quickly making exercise book or worksheet questions instantly more exciting/engaging.
Simply type in the answers for each section (Questions 1a-g for example) in the orange rows of the 'Setup' worksheet and click 'calculate now'. The answers in each section will be assigned a random word.
Show students the 'Code Letters' worksheet (either on the board or printout) and they get a letter for each answer. You can check these against the words in the 'Answers' worksheet