Linked from
The 22 pages that link to Scientific notation, each with the reason it gives.
ExponentiationRelated: Powers of ten compactly represent very large and very small quantities.
Positional notationBroader topic: It makes a positional numeral’s power-of-ten scaling explicit.
Place valueRelated: The exponent shifts the decimal place to encode very large or small values.
Order of magnitudeRelated: Its exponent makes a number’s approximate order of magnitude visible.
PowerRelated: Powers of ten make very large and very small quantities compact.
Decimal systemRelated: It compresses very large and small decimal quantities.
Metric prefixRelated: Converting a prefixed quantity to scientific notation exposes its scale.
Powers of tenRelated: It uses powers of ten to make very large and small numbers compact.