Final answer:
The SUM keyboard shortcut in spreadsheet software like Microsoft Excel is Alt + =. Mastering different calculators may involve learning specific key combinations or entering the calculation in the correct order, and sometimes rearranging the input is necessary for an accurate result.
Step-by-step explanation:
The SUM keyboard shortcut is Alt + =. When using this shortcut in spreadsheet software such as Microsoft Excel, it automatically creates a sum formula for the selected cells. To execute this function, select the cells you wish to sum and then press Alt + =. Upon pressing these keys, the software will generate the SUM formula and calculate the total for the selected range.
Your success with using calculator shortcuts and functions will depend on the model of the calculator and familiarity with its features. For typical scientific calculators, you might use combinations of the Shift or second function keys to access various operations like exponentials. When entering calculations into a calculator, the order in which you input the keys is crucial, and if an error occurs, you may need to rearrange these inputs and try again to get the correct result.