Google Sheets is a versatile spreadsheet app you can use across multiple platforms, including any browser as a web app, on Android or iOS as a mobile app, or even as a desktop app through ChromeOS.

To add a formula in Google Sheets, click the cell where you want the answer, then choose one of the hundreds of functions.

Spreadsheets are supposed to save time, but sometimes they just make things messier. I hated digging through endless menus until I found a handful of formulas that do the heavy lifting for me. VLOOKUP ...