減げん数すう

noun, noun or participle which takes 'suru'

decrease in number; reduction in quantity

General term for a numerical decrease; can be used as a noun or with する to mean 'to decrease in number'.

• 今年ことしは応おう募ぼ者しゃの減げん数すうが目め立だつ。

  This year, a decrease in the number of applicants is noticeable.

• 会かい員いんが減げん数すうしている。

  The membership is decreasing in number.

noun, noun or participle which takes 'suru'

subtrahend

Mathematics term: the number that is subtracted from another (the minuend).

• 引ひき算ざんでは、減げん数すうは引ひく方ほうの数かずです。

  In subtraction, the subtrahend is the number being subtracted.