The greatest power of spreadsheets is that they can be programmed (the formula) to do the maths as you update the data
The most basic calculations are:
- add +
- subtract (minus) –
- multiply *
- divide /
These symbols are keys on your keyboard (on the main keyboard – you will need SHIFT for the * as it is over the 8). They are also on the calculator keyboard of a desktop computer
- You can combine + – / * according to the maths you need
- The answer of the calculation will display instead of the formula
- You tell the spreadsheet you are about to write a formula by always starting with = (equals)
- You can build very complex formulae
https://www.youtube.com/watch?v=RgvdCHjOKYg