One of five textbooks for use in school and at home. Each left-hand page shows methods with worked examples. The corresponding right-hand page gives questions for the student to try. Topics covered include: finding square roots; Pythagoras' theroem; simultaneous equations; matrices; vectors; multiplication and factorization with brackets; quadratic equations; probability; mean, mode, median and range; trigonometry; circles; volume of pyramids, cylinders and cones.