How to Make a Basic Addition
1. Type your first number (for example 5) in cell B1 and your second (for example 5) in cell C1. Type equals symbol (=) into cell D1, this opens the function box.
2. Click B1 to enter number into formula, then type plus symbol (+) to signify addition.
3. Finally click C1 to add second number to equation and click green tick (✔). Answer (10) will now show in cell D1.