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Sets: Set operations — union, intersection, complement
Practice Questions

20 CXC CSEC Mathematics questions on Sets: Set operations — union, intersection, complement, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Sets: Set operations — union, intersection, complement

Question 1 · 1 mark · Difficulty 1/3

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {2, 4, 6, 8} and B = {1, 2, 3, 4, 5}, what is A ∩ B?

  1. {2, 4}
  2. {1, 2, 3, 4, 5, 6, 8}
  3. {6, 8}
  4. {1, 3, 5}
Show answer & explanation
✓ Answer: A — {2, 4}
Award 1 mark for correctly identifying the elements common to both sets A and B. B is incorrect because it represents A ∪ B (union). C is incorrect because it shows elements in A but not in B. D is incorrect because it shows elements in B but not in A.
Question 2 · 1 mark · Difficulty 1/3

Given that U is the universal set and P is a subset of U, which expression represents all elements NOT in set P?

  1. P ∪ U
  2. P ∩ U
  3. P'
  4. U'
Show answer & explanation
✓ Answer: C — P'
Award 1 mark for identifying the complement notation. A is incorrect because P ∪ U = U. B is incorrect because P ∩ U = P. D is incorrect because U' = ∅ (empty set).
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CXC CSEC Mathematics: Sets: Set operations — union, intersection, complement FAQ

How many CXC CSEC Mathematics questions on Sets: Set operations — union, intersection, complement are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Sets: Set operations — union, intersection, complement for CXC CSEC Mathematics, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CXC paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CXC CSEC students preparing for Mathematics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Sets: Set operations — union, intersection, complement practice with other Mathematics topics or even switch to a totally different CXC subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Sets: Set operations — union, intersection, complement questions aligned to the official CXC CSEC Mathematics syllabus?
Every question is written against the published CXC CSEC Mathematics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CXC.
How is Sets: Set operations — union, intersection, complement typically tested on CXC CSEC Mathematics papers?
Sets: Set operations — union, intersection, complement appears across multiple question types on real CXC CSEC Mathematics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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