If a spreadsheet user wants calc to add a range of cells, what built-in function should he or she use?
a)the add function
b)the opr function
c)the sum function
d)the wizard function

A word-processing software has always made a lot of office work much easier and comfortable because of its ability to construct documents, most especially spreadsheets. In addition, when adding a range of cells in a spreadsheet, the common command that is used in the formula bar would be the SUM function.

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