A photocopiable maths activity book for Key Stage 3 students in Year 9. It seeks to cover all the key objectives of the Calculations strand of the National Numeracy Strategy framework. There are over 50 pages of photocopiable activities, and minimal teacher preparation is required. There are ideas for whole-class oral and mental maths starter activities (as recommended by the framework). Each activity is divided into three progressive steps for easy differentiation, and extension learning activities are provided to reinforce and develop the pupils’ learning. There are notes for teachers. The text is part of a series in which there is one book for each year group at Key Stage 3, from Year 7 to Year 9.