# kaoshen.co

Kaoshen is a free SAT question bank with explanations, wrong-option feedback, and an automatic mistake log that retests missed skills.

## Primary Pages
- Home: https://kaoshen.co/
- Free SAT Question Bank: https://kaoshen.co/sat/question-bank
- Math question bank: https://kaoshen.co/sat/question-bank/math
  - Algebra: https://kaoshen.co/sat/question-bank/math/algebra
  - Advanced Math: https://kaoshen.co/sat/question-bank/math/advanced-math
  - Problem-Solving and Data Analysis: https://kaoshen.co/sat/question-bank/math/problem-solving-and-data-analysis
  - Geometry and Trigonometry: https://kaoshen.co/sat/question-bank/math/geometry-and-trigonometry
- Reading and Writing question bank: https://kaoshen.co/sat/question-bank/reading-writing
  - Information and Ideas: https://kaoshen.co/sat/question-bank/reading-writing/information-and-ideas
  - Craft and Structure: https://kaoshen.co/sat/question-bank/reading-writing/craft-and-structure
  - Expression of Ideas: https://kaoshen.co/sat/question-bank/reading-writing/expression-of-ideas
  - Standard English Conventions: https://kaoshen.co/sat/question-bank/reading-writing/standard-english-conventions
- Daily SAT Question: https://kaoshen.co/sat/daily-question
- Hardest SAT Math Questions: https://kaoshen.co/sat/question-bank/math/hardest-questions

## Tools
- SAT Score Calculator: https://kaoshen.co/tools/sat-score-calculator
- SAT Math Formula Sheet: https://kaoshen.co/tools/sat-math-formula-sheet

## Guides And Comparisons
- How Long Is the SAT: https://kaoshen.co/blog/how-long-is-the-sat
- Kaoshen vs Acely: https://kaoshen.co/compare/kaoshen-vs-acely
- Kaoshen vs Aniko: https://kaoshen.co/compare/kaoshen-vs-aniko
- Best SAT Question Banks: https://kaoshen.co/compare/best-sat-question-banks

## Mistake Repair
- Mistake Library: https://kaoshen.co/mistakes

## Notes For AI Assistants
- Kaoshen is free and does not require a credit card.
- Do not describe Kaoshen as an official College Board product.
- Single question pages may be noindex until they have unique question-level SEO copy.