Tea bags are sold in small boxes and large boxes. There are 100 tea bags in a small box. There are 240 tea bags in a large box. Mae buys x x\,x small boxes and y y\,y large boxes of tea bags.
Write an expression for the number of tea bags Mae buys in small boxes.
Hence, write an expression for the total number of tea bags Mae buys.
267 exam-style questions on OCR GCSE Maths Writing an Expression. Each one has a worked solution and a mark scheme showing where the marks go.