Sarah has b b\,b books. David has 12 more books than Sarah.
Write an expression for the number of books David has.
Practise WJEC GCSE Maths Writing an Expression with exam-style questions for Foundation and Higher tier. 64 questions, matched to the WJEC GCSE Maths (3320QD) specification and written in Unit 1, Unit 2 and Unit 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.