Watch these videos to see how Excel 2013 makes it easy to add numbers using formulas, buttons, and functions (such as the SUM and SUMIF functions).
You can use Excel to add numbers using formulas, buttons, and functions. (3:03)
The SUM function
When adding a few cells, the SUM function will save you time. With larger ranges of cells, it’s essential. (4:48)
The SUMIF function
The SUMIF function allows you add cells that meet a criteria that you provide. (5:37)
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