A shop sells toilet rolls in small packs and big packs. There are 4 toilet rolls in a small pack. There are 9 toilet rolls in a big pack. The shop has s s\,s small packs and b b\,b big packs of toilet roll.
Write an expression for the total number of packs of toilet roll the shop has.
Write an expression for the total number of toilet rolls the shop has.
Practise Edexcel IGCSE Maths Writing an Expression with exam-style questions for IGCSE Maths. 16 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.