Type an equals sign `=` in the cell
Enter the formula using cell references, numbers, and operators
Use `+` for addition
Use `-` for subtraction
Use `*` for multiplication
Use `/` for division
Use `^` for exponents
Use parentheses `()` to control order of operations
Press `Enter` to calculate the result
Use `SUM()` to add a range of cells
Use `AVERAGE()` to find the mean of cells
Use `MIN()` to find the smallest value
Use `MAX()` to find the largest value
Use `COUNT()` to count numeric cells
Use `IF()` for conditional equations
Use `ABS()` for absolute value
Use `ROUND()` to round numbers
Use cell references like `A1`, `B2`, or `C3`
Use ranges like `A1:A10`
Copy equations by dragging the fill handle
Edit equations in the formula bar