A daily math game you can play in two minutes
One sprint a day, the same 20 problems for everyone in the world. Your score is your time.
How a day's sprint works
Every day there is one new set of 20 problems: five additions, five subtractions, five multiplications and five divisions, in that order. Each round of five gets harder as it goes, from two small numbers to a three-digit sum or a multiplication past the times tables.
Type each answer on the keypad or your keyboard. A right answer moves on by itself and a wrong one clears, so there's nothing to submit and no penalty to count. Your score is the time from the first problem to the last.
All the answers are whole numbers: divisions always come out exactly and subtractions never go below zero.
Share your grid, not the answers
When you finish you get a grid with one square per problem: 🟩 under 2 seconds, 🟨 2 to 4 seconds, 🟥 over 4. Share it with friends, a family chat or a class, and they can see how you did without seeing the problems.
Keep the streak
Your first run each day is the one that counts, and it goes on that day's leaderboard. Play every day to build your streak. A new sprint starts at midnight where you are.
There's no account needed. Sign in with Google and your streak and history follow you to every device.
Who it's for
- Adults who want to keep their arithmetic sharp, a couple of minutes a day.
- Students preparing for tests where speed matters, or just getting faster with numbers.
- Teachers looking for a warm-up: the whole class gets the same problems, and the grids are easy to compare.
Want more than one round a day? Practice gives you a fresh set whenever you like, without touching your streak.
Questions
Is SumStreak free?
Yes. The daily sprint, practice and leaderboard are free, with nothing to download and no account needed.
Does everyone get the same problems?
Yes. Everyone gets the same 20 problems each day, so times can be compared fairly.
When does the new daily puzzle come out?
At midnight in your own time zone.