Learn Google Sheets function syntax, how to read tooltips, required and optional arguments. Functions covered in this tutorial: SUM, SUMIFS, COUNT, COUNTA, COUNTIFS, AVERAGE, AVERAGEIFS, MEDIAN, ROUND.

Practice Sheet:
https://docs.google.com/spreadsheets/d/1FCXWDco6k9eVACaoxIHaPL3oQ6MxsC8EpHrC5K_n9Zw/edit?usp=sharing