Usage Note
Quersumme is the sum of all digits of a number, used as a quick divisibility check. If a number's Quersumme is divisible by nine, the number itself is too — a rule taught in German primary schools.
Examples
"Die Quersumme von 729 ist 18, also ist die Zahl durch neun teilbar."
Natural Translation
The digit sum of 729 is 18, so the number is divisible by nine.
Literal Translation
The digit sum of 729 is 18, so the number is divisible by nine.
Related Words
- Ableitung derivative (calculus)
- Abszisse abscissa; x-axis; x-coordinate
- Achse axis (geometry, graphs)
- Achsenabschnitt y-intercept, axis intercept
- Asymptote asymptote (line a curve approaches but never reaches)
- Axiom axiom (self-evident principle)
- Berechnungsgrundlage basis of calculation; calculation basis
- Binomialkoeffizient binomial coefficient
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