Harry has 50 sweets.
He gives 25\displaystyle \frac{2}{5}52 of the sweets to Sandra.
He gives 310\displaystyle \frac{3}{10}103 of the sweets to Jamie.
Harry keeps the rest of the sweets for himself.
Work out how many sweets Harry keeps.
Practise Edexcel IGCSE Maths Fractions of an Amount with exam-style questions for IGCSE Maths. 22 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.