Groups of 3 (worked best for me) answering maths questions. 6 legs in this version. Pupils must answer the questions on each leg correctly before moving onto the next leg. They may have multiple goes but must be correct before moving on. The groups work out the questions, come up to you to check they are correct and then get given the next leg of questions. This version contains prime numbers, factors, multiplying by a single digit, multiplying by two digits, diving by one digit and adding fractions. Answers are on the slide after - not needed to be printed for the children. I found this lasted 50 minutes - 1 hour.