Every question, tagged to your syllabus
Papers are split into individual questions and mapped to the learning outcomes of the syllabus version you are actually sitting — so a 2014 question on a withdrawn topic never reaches you.
Every Cambridge O Level, A Level and IB paper, split question by question, tagged to your syllabus, with the official mark scheme on the side.
One subject done properly beats forty done badly — a wrongly tagged question wastes the revision time it was supposed to save. Subjects are published as their question banks pass review; the ones still being checked are listed after them.
Biology
668 questions · 2016–2026
Open7115Business Studies
352 questions · 2016–2026
Open5070Chemistry
2,067 questions · 2016–2026
Open2210Computer Science
694 questions · 2016–2026
Open2281Economics
1,467 questions · 2016–2026
Open2058Islamiyat
420 questions · 2016–2026
Open4024Mathematics (Syllabus D)
1,490 questions · 2016–2026
Open2059Pakistan Studies
200 questions · 2016–2026
Open5054Physics
2,095 questions · 2016–2026
Open2251Sociology
174 questions · 2016–2026
OpenPapers are split into individual questions and mapped to the learning outcomes of the syllabus version you are actually sitting — so a 2014 question on a withdrawn topic never reaches you.
The official marking points, attached to the question they belong to — not a separate PDF you open in another tab.
Timed, resumable and marked the moment you submit, with a question-by-question review of what you got right and wrong.
Accuracy per topic and time per question, so revision goes where it is needed instead of where it is comfortable.
Question
1 (a)Convert the denary number 45 into an 8-bit binary number.
[2]
Mark scheme
00101101 — 2 marks
1 mark for a method that shows 32 + 8 + 4 + 1, or for an 8-bit answer with one digit wrong.
Marks and wording, attached to the question.
Your weak areas
SampleWorst first, so revision goes where it is needed.
Questions, mark schemes and your weak areas in one place — no switching between PDF tabs.