Sum all the numbers of one or several ranks of cells. Examples of Operation: Sum of rango.=SUMA (A1: A4) In the previous example all the numbers will be added that are in the A1 rank: A4, that is to say, A1+A2+A3+A4.Resultado: A1+A2+A3+A4Suma of cells separadas=SUMA (A1, B2, C3) In the previous example will add the values of the cells A1, A2 and A3Resultado: A1+B2+C3Suma of several rangos=SUMA (A1: A3, B2: B4) In the previous example the cells of the A1 rank will be added: A3 (A1, A2, A3) plus the cells of the B2 rank: B4 (B2, B3, B4) Result: A1+A2+A3+B2+B3+B4