27 topics
Math
27 math topics written in plain English for K-5 readers, with facts you can trace to a source.
- 0 Grades 4-5 · 1824 words · simpler version
- 1 Grades 2-3 · 373 words · simpler version
- 10 Grades 3-4 · 146 words · simpler version
- 15 Grades 2-3 · 150 words · simpler version
- 16 Grades 3-4 · 142 words · simpler version
- 19 Grades 2-3 · 149 words · simpler version
- 2 Grades 2-3 · 248 words · simpler version
- 3 Grades 3-4 · 224 words · simpler version
- 4 Grades 4-5 · 401 words · simpler version
- 5 Grades 3-4 · 268 words · simpler version
- 6 Grades 3-4 · 537 words · simpler version
- 7 Grades 2-3 · 285 words · simpler version
- 8 Grades 2-3 · 231 words · simpler version
- 9 Grades 3-4 · 508 words · simpler version
- Adding Grades 4-5 · 859 words · simpler version
- Area Grades 4-5 · 261 words · simpler version
- Buying Something Grades 2-3 · 356 words · simpler version
- Counting Grades 2-3 · 267 words · simpler version
- Counting 0 - 10 Grades 2-3 · 374 words · simpler version
- Decimals Grades 4-5 · 691 words · simpler version
- Fractions Grades 4-5 · 81 words · simpler version
- Guessing Jellybeans Grades 3-4 · 405 words · simpler version
- Negative Numbers Grades 4-5 · 578 words · simpler version
- Numbers Grades 3-4 · 2120 words · simpler version
- Order of Operations Grades 3-4 · 284 words · simpler version
- Pythagorean theorem Grades 4-5 · 860 words · simpler version
- Video Games Grades 4-5 · 1057 words · simpler version
Articles in Learn are adapted from Simple English Wikipedia and Wikijunior by their contributors, and are published under CC BY-SA 4.0. Each article names its source and links to it. See credits.