what is a sign used to represent operations, quantities, and relations?

Question

i need this for a math question help me!

Answer 1

Symbol

Sym"bol (?), n. [L. symbolus, symbolum, Gr. a sign by which one knows or infers a thing, from to throw or put together, to compare; with + to throw: cf. F. symbole. Cf. Emblem, Parable.]

1.

A visible sign or representation of an idea; anything which suggests an idea or quality, or another thing, as by resemblance or by convention; an emblem; a representation; a type; a figure; as, the lion is the symbol of courage; the lamb is the symbol of meekness or patience.


A symbol is a sign included in the idea which it represents, e.g., an actual part chosen to represent the whole, or a lower form or species used as the representative of a higher in the same kind. Coleridge.

2. Math.

Any character used to represent a quantity, an operation, a relation, or an abbreviation.

Answer 2

operator. (but quantities are represented by numbers)

i am curious what the answer is according to your teacher