Type a formula in the formula bar and press Check. The grader runs your formula on the live data and compares the result. Press New numbers to reshuffle the data and prove you didn't memorize the answer.
The first 7 exercises are free. Pro unlocks exercises 8 to 28, including VLOOKUP, XLOOKUP, INDEX MATCH and dates, plus timed mock tests and progress saved across devices.
Earn XP for every solve, a bonus for first try, and another for passing after New numbers. See your progress, badges and the leaderboard.