Math Reference
Charts and lists that are useful to keep at hand — or to print.
Charts and lists
- Roman Numerals ConverterConvert numbers to Roman numerals and back, with rules and a chart.
- Multiplication TableA 12 × 12 times-table grid with patterns that make it easier to learn.
- Fraction to Decimal ChartDecimal and percent equivalents of common fractions, plus 32nds in mm.
- Percent–Fraction–Decimal ChartEquivalent percentages, fractions and decimals, and how to convert between them.
- Math SymbolsCommon mathematical symbols with names, meanings and examples.
- Prime Numbers ListAll 168 primes below 1,000, grouped by hundreds, with facts about primes.
- Squares & Roots Tablen², n³, √n (exact and decimal) and ∛n for 1 to 30.
- Logarithm RulesThe laws of logarithms with an example for each, plus common mistakes.
- Binary–Hex–Decimal ChartNumbers 0–32 and key values up to 255 in binary, octal, hex and decimal.