The SUM() function calculates the sum of all the values given as parameters. You can calculate the sum of a range SUM(A1: B5) or a list of values like SUM(12; 5; 12.5).
De funksje SUM () berekkent de som fan alle wearden dy' t as parameter opjûn binne. Jo kinne de som fan in bepaald berik, SUM( A1: B5) berekkenje of fan in list fan wearden, lykas SUM( 12; 5, 12, 5).