There are 20 different steps in the Big Maths CLIC challenges which children progress through incrementally. We use these to assess children's calculation skills and to inform our planning (looking at the questions children are having difficulty with). The challenges also provide regular weekly practise of addition, subtraction, multiplication and division (as well as decimals, fractions and percentages in the later stages).
Each CLIC challenge contains ten questions which become progressively more difficult through the stages. When children have been able to answer all ten questions correctly for three weeks consecutively they will move up to the next CLIC level.