FORMULAS

• Sum -

Summation, the addition of a sequence of numbers. Addition, the elementary mathematical operations of arithmetic that totals amount of quantities combined.

Sum, an old name for the Finns in East Slavic languages, derived from the work Suomi, "Finland".

A sum is the result of an addition. For example, adding 1, 2, 3, and 4 gives the sum 10, written

As shown in above picture, which cells(quantity) you are going to be add, go to blank cell write =sum(select cells which you want to add)

There is also a shortcut for adding cells

ALT + +(ADD KEY)