# Arithmetic

A condensed, yet comprehensive, refresher of elementary arithmetic.

## Table of contents

- Preface
- Numeral systems
- Names of large numbers
- Scientific notation
- Addition
- Subtraction
- Multiplication
- Division
- Negative numbers
- Order and precedence
- Prime numbers
- Rational numbers and fractions
- Arithmetic with fractions
- Greatest common divisor and least common multiple
- Decimal fractions
- Ratio, rate and proportion
- Percentages
- Appendix A