Whole numbers: looking back; mental calculations; whole number calculations; squares, cubes and square roots; factors and prime factors; working with integers - below zero; subtracting integers; multiplying integers; dividing integers; sum, difference, product and quotient; more mental calculations; check-up. Decimals: looking back; adding and subtracting without a calculator; adding and subtracting on the calculator; rounding to 1 decimal place; multiplying and dividing by 10, 100 and 1000; multiplying and dividing a decimal by a whole number; multiplying and dividing on the calculator; adding and subtraction - being more precise; rounding to more than 1 decimal place; further multiplication and division; significant figures; scientific notation; check-up. Angles: looking back; angles associated with parallel lines; corresponding angles; alternate angles; mixed examples; the sum of the angles of a polygon; check-up. Letters and numbers: looking back; a variety of expressions; like terms; ordering the operations; repeated adding and multiplying; evaluating squares; removing brackets; factorising expressions; close-up.