Formulas can become **very long** if you want to include a lot of numbers in the calculation. They often **take a long time to type** and it is **easy to make mistakes** in them.
**Functions** can be used in some formulas **to make them simpler**. For example, you can use =SUM **to add up lots cells quickly**
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You can Type Different Functions into Cell B51 to Calculate other Answers: |

Function |
Explanation |
=MIN(B2:B50) |
This will find the smallest score in the range of cells B2 to B50. |
=MAX(B2:B50) |
This will find the largest score in the range of cells B2 to B50. |
=AVERAGE(B2:B50) |
This will find the average score in the range of cells B2 to B20. |
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