Pro lesson · 6 exercises · first one free
Case study: the gym's members
Spot inactive members and compare plans with COUNTIFS, AVERAGEIF, dates and IF.
Functions you'll practice
How the lesson works
6 short exercises in a live spreadsheet: you type each formula yourself and answer questions that make you predict results or spot bugs. Every answer is checked instantly, with hints when you're stuck.
The lesson starts with
Kai manages a small gym and wants to understand who comes, who doesn't, and what each plan brings in.Try the first exercise free
Type the formula in a real spreadsheet and get instant feedback. Exercise 1 of 6, no account needed.
Pro lesson
Unlock the whole lesson
Pro unlocks every lesson, the case studies and unlimited weak-spot review. The fundamentals track stays free.