Relational thinking is evident when, for example, verbal descriptions, arrows, or diagrams are used to compare the size of numbers either side of the equal sign, and where these verbal descriptions, arrows or diagrams are used in chain of argument, based on uncalculated pairs, using compensation and equivalence to find the value of a missing number.By contrast,computational thinking follows a fixed pattern.In Group A and B questions, students must complete the calculation on the opposite side to where the