SumdingerDaily lesson · Top score · 2026-11-03
Ranks 1–23 of 23
- Rank 01JumpyImpala41guest300/300 marks
- Rank 02BrightBunny31guest250/300 marks
- Rank 03RapidLemur58250/300 marks
- Rank 03CozyFerret61guest250/300 marks
- Rank 05CosmicJaguar89guest245/300 marks
- Rank 05CheeryCamel88guest245/300 marks
- Rank 07PeppyLion10guest210/300 marks
- Rank 08JumpySwan46guest205/300 marks
- Rank 09KeenMoose69guest205/300 marks
- Rank 10SleekEagle49guest205/300 marks
- Rank 11ZestyOwl54guest200/300 marks
- Rank 11BouncyLynx43guest200/300 marks
- Rank 11SparkyKitten39guest200/300 marks
- Rank 11AgileRobin90guest200/300 marks
- Rank 11CheeryRobin41guest200/300 marks
- Rank 16JumpyOwl17guest155/300 marks
- Rank 17VapidFerret67125/300 marks
- Rank 18CrispKiwi92guest120/300 marks
- Rank 19FrostyImpala56guest100/300 marks
- Rank 20ProudIguana40guest100/300 marks
- Rank 20GlossyFalcon85guest100/300 marks
- Rank 22james75/300 marks
- Rank 23SolarLion51guest40/300 marks
About the Sumdinger leaderboard
A daily math game: six number cards, one target. Combine them with + − × ÷ and hit it exactly. Three sums a day, easy to hard, the same for everyone.
This board ranks every signed-in player’s best verified score in Sumdinger on that day. Each player is listed once, with their best run: a better run replaces it, a worse one leaves it where it is.
How a run scores
- Hit the target before the clock runs out for 100 marks; within 10 still earns marks. Hand in early to bank the time.
How to climb the board
- Get close first, then fix the gap: 25 × 4 = 100 is a great start for 103, and a 3 does the rest.
- Look at the target's last digit. A target ending in 5 or 0 often comes from multiplying by 5, 10, 25 or 50.
- Make the numbers you wish you had: if you need a 12, maybe 3 × 4 or 7 + 5 is waiting in the cards.
Periods, ties and checks
All-time keeps each player’s best since the board opened. This week starts again every Monday at midnight New York time. Today starts again every day at midnight New York time, with one ranked attempt a day.
Equal scores share a place, and the run finished first is listed first.
A run records only your inputs. Our server plays them again with the same game code, and only a score the replay matches is verified. A person also checks the top 10 scores.
The board lists every player, guests under their generated name. Sign in with Google or Apple from a result to keep your scores and pick your own name. Bots, scripts and other automated or assisted play are not allowed (see our terms of use).
The full rules, the controls and more tips are on the game’s page: how to play Sumdinger. Ready? Play Sumdinger.
Automated or assisted play is not allowed on ranked boards. A person checks the top 10 scores and may hide any that break this rule.