This 4th edition of Collins GCSE Maths has been fully revised and updated for the 215 GCSE specifications. The new edition of this well-established text has a new focus on mathematical reasoning and problem solving. The course coverage ensures that you will have the confidence to tackle the new curriculum and succeed. •Bring awe and wonder with a chapter opener that puts the math in context •Provide rigorous math practice with hundreds of high quality questions •Focus on literacy skills with key words per topic •Reason, interpret and communicate mathematically with flagged mathematical reasoning questions (labeled MR and CM) •Solve problems within mathematics and in other contexts with flagged problem-solving questions (labeled PS and EV) •Show step by step working through worked examples (numbered sequentially throughout the chapter) •Help students get to grips with concepts with more diagrams and visual representation •Access answers online, in the Teacher’s Pack and in the Collins Connect edition