operand
object of a mathematical operation, quantity on which an operation is performed
constant
mathematical concept; value which cannot be changed or does not change during a process
minuend
number or quantity from which another is to be subtracted
variable
value that can change, usually with a context of an equation or operation
exponent
operand of exponentiation
divisor
operand of division
summand
in a sum, quantity to which another is added or to be added to another
subtrahend
number being subtracted
base
the first argument in exponentiation; the number 𝑏 in an expression of the form 𝑏ⁿ