"Doing sums" seems to have become a common phrase for performing any of the basic mathematical operations (addition, subtraction, multiplication or division). Sum however only refers to additions - so the SUM(a,b,..n) function will simply add together whatever is in the brackets (arguments).
"Sum" is the result of addition, "Difference" is the result of subtraction, "Product" is the result of multiplication and "Quotient" is the result of division. SUM and PRODUCT are both definitely Excel functions, but I don't recall having ever used the other two as a function. |
