# Primary Mathematics

From Wikibooks, open books for an open world

This book focuses on primary school mathematics for students, whether children or adults. It is assumed that no calculators are used, to encourage mental arithmetic. A parallel project at Wikiversity is underway to provide teaching tools to parents and educators, whether in traditional or home-schooling environments, at Primary School Mathematics.

## Getting started[edit]

- Numbers
- Adding numbers
- Subtracting numbers
- Multiplying numbers
- Dividing numbers
- Factors and Primes
- Method for Factoring
- Negative numbers
- Fractions (rational numbers)
- Working with fractions
- Decimals
- Percentages
- Metric system
- Time expressions
- Unit expressions
- Introduction to significant digits
- Powers, roots, and exponents
- Scientific and engineering notation
- Average, median, and mode
- Probability