The CLEP Precalculus exam gives students the opportunity to earn college credit for a course they already know — or can learn efficiently through focused self-study. A passing score of 50 typically earns 3 semester hours at most institutions that accept CLEP credit, though policies vary by college. The exam covers six content areas: Algebraic Expressions/Equations/Inequalities (20%), Functions: Concept/Properties/Operations (15%), Representations of Functions (30%), Analytic Geometry (10%), Trigonometry (15%), and Functions as Models (10%).
Choosing the right prep book makes a significant difference. Some books are too narrow, covering only one section; others are too advanced, assuming calculus background. This guide reviews the top options across different learning needs.
ViewMath is not affiliated with or endorsed by College Board. CLEP® is a trademark of College Board. For official CLEP Precalculus information, visit clep.collegeboard.org.
Note on Amazon affiliate links: The Amazon links in this article include the ViewMath affiliate tag. As an Amazon Associate, ViewMath earns from qualifying purchases. This does not affect pricing. We only recommend books we believe are genuinely useful for CLEP Precalculus preparation. ASIN numbers are included only where verified.
What to Look for in a CLEP Precalculus Prep Book
Before choosing a book, check for these features:
- Coverage of all six CLEP content areas. The Representations of Functions section (30% of the exam) is the largest single block — make sure the book treats it fully.
- Practice tests aligned to CLEP format. The exam has 48 questions in two sections: Section 1 (25 questions, ~50 minutes, graphing calculator allowed) and Section 2 (23 questions, ~40 minutes, no calculator). A good prep book simulates this structure.
- Trigonometry coverage. Trigonometry accounts for approximately 30%–40% of CLEP Precalculus questions when permeation across other topics is counted. Many standard precalculus textbooks underemphasize trig for a placement test context.
- Answer explanations, not just answer keys. Knowing the correct answer is far less valuable than understanding why your answer was wrong.
Top CLEP Precalculus Prep Book Recommendations
1. ViewMath CLEP Precalculus Made Easy – Best ViewMath Study Guide
A direct CLEP Precalculus study guide with key points, examples, practice, and two practice tests. Best for students who want concept review before timed testing.
2. ViewMath CLEP Precalculus Step by Step Study Guide – Best Guided Review
This is the most guided ViewMath option, useful for students rebuilding functions, analytic geometry, and trigonometry from a weaker foundation.
3. ViewMath CLEP Precalculus Rapid Prep – Best Short Timeline Review
A compact review for students who need a fast pass through formulas, examples, and high-priority topics before practice questions.
4. ViewMath CLEP Precalculus Formula Sheet and Key Points – Best Final Review
Use this in the final week as a quick-reference companion for functions, trig identities, conics, and common procedures.
5. CLEP Pre-Calculus for Beginners – Effortless Math
A beginner-friendly alternative for students who want a step-by-step paperback-style prep book.
6. 10 CLEP Precalculus Practice Tests – Effortless Math
Best when you have already reviewed content and need additional testing volume.
7. College Board Official CLEP Precalculus Resources
Use the official page to confirm the current exam description and access College Board preparation materials.
View official CLEP Precalculus resources
8. Khan Academy Precalculus (Free)
Khan Academy is strongest for visual review of functions, trigonometry, and conic sections after practice tests reveal weak topics.
9. OpenStax Precalculus (Free)
OpenStax provides a full textbook-level treatment of the precalculus topics behind the CLEP exam.
10. Paul’s Online Math Notes – Algebra and Trig Review (Free)
Paul’s notes are useful for quick worked examples when a particular algebra or trigonometry skill is blocking progress.
How to Build a CLEP Precalculus Study Plan
The right study timeline depends on your current level:
- Strong precalculus background (in course or recently completed): 3–4 weeks of focused review using the REA guide and the official CLEP sample questions is typically sufficient.
- Moderate algebra background, limited trig: 6–8 weeks. Spend 2–3 weeks on trigonometry specifically, then move to functions and practice tests.
- Starting from scratch (basic algebra only): 12+ weeks using a full textbook (Stewart or Blitzer) before moving to CLEP-specific practice tests.
Regardless of starting point, the final two weeks should be dedicated to timed practice tests using the official CLEP format (48 questions, ~90 minutes, with the Section 1/Section 2 calculator restriction). Reviewing every missed question against the official topic outline helps identify which content areas need extra attention before test day.
Quick CLEP Precalculus Topic Checklist
- ☐ Solving quadratic, rational, and radical equations
- ☐ Domain and range of functions
- ☐ Function transformations (shifts, reflections, stretches)
- ☐ Composition and inverse functions
- ☐ Exponential and logarithmic functions (including change of base)
- ☐ Unit circle values (sin, cos, tan for standard angles)
- ☐ Graphing trigonometric functions (amplitude, period, phase shift)
- ☐ Trigonometric identities (Pythagorean, sum/difference, double angle)
- ☐ Conic sections (parabola, ellipse, hyperbola — standard form equations)
- ☐ Piecewise-defined functions
- ☐ Systems of equations (linear and nonlinear)
ViewMath is an independent publisher. Our materials are not official CLEP exam materials and are not produced by or affiliated with College Board.
