Question: 9. what is the formula to find the sum of cells a1 a2 and a3?
Answer: Example of simple math formulas: =A1+A2+A3 this Excel formula adds the contents of the three cells specified. (See the SUM function for adding multiple numbers) =A3-A1 this Excel formula subtracts the contents of cell A1 from the contents of cell A3. =B2*B3 this Excel formula multiples the numbers in cells B2 and B3.