Understanding Maths: Years 1 and 2: Topics Covered: Numbers; Numeration, Addition, Subtraction, Multiplication, Division, Order of Operations, Fractions and Decimals, Money, Chance and Data. Space; 3 Dimensional, 2 Dimensional, Position, Graphs. Measurement; Length, Area, Volume, Mass, Temperature, Time by Alan Hortsfield (Paperback, 1996)