SumdingerDaily lesson · Top score · All-time
Ranks 1–50 of 90
- Rank 01dxi300/300 marks
- Rank 02VonHotzendorf300/300 marks
- Rank 03ComfyMagpie53guest300/300 marks
- Rank 04LunarOrca37guest300/300 marks
- Rank 05BouncyLynx43guest300/300 marks
- Rank 06QuietPanther49guest300/300 marks
- Rank 07wanghaf300/300 marks
- Rank 08ZestyRabbit39guest300/300 marks
- Rank 09GrumpyCat85300/300 marks
- Rank 10JumpyImpala41guest300/300 marks
- Rank 11BrightBunny31guest250/300 marks
- Rank 12SolarFinch55guest250/300 marks
- Rank 13SnappyBadger46guest250/300 marks
- Rank 14Cin250/300 marks
- Rank 14BrightTiger70guest250/300 marks
- Rank 14RapidLemur58250/300 marks
- Rank 14CozyFerret61guest250/300 marks
- Rank 18JollyMeerkat74guest245/300 marks
- Rank 19CosmicJaguar89guest245/300 marks
- Rank 19CheeryCamel88guest245/300 marks
- Rank 21vickyrozay240/300 marks
- Rank 22ShinyRobin32guest230/300 marks
- Rank 23SnowyToucan82guest225/300 marks
- Rank 24JazzyTurtle68guest215/300 marks
- Rank 25PeppyLion10guest210/300 marks
- Rank 26TheGreatShardik205/300 marks
- Rank 27Catcloud03205/300 marks
- Rank 28JumpySwan46guest205/300 marks
- Rank 29KeenMoose69guest205/300 marks
- Rank 30SleekEagle49guest205/300 marks
- Rank 31BouncyAlpaca39guest200/300 marks
- Rank 32BoldCheetah66guest200/300 marks
- Rank 33DapperLion28guest200/300 marks
- Rank 34KeenImpala63guest200/300 marks
- Rank 35SpryDingo66guest200/300 marks
- Rank 36FancyGecko83guest200/300 marks
- Rank 37BubblyMagpie11guest200/300 marks
- Rank 38SleekLemur34200/300 marks
- Rank 39HappyNewt72guest200/300 marks
- Rank 40JumpyBadger73guest200/300 marks
- Rank 41SpryOcelot23guest200/300 marks
- Rank 42KeenToucan89guest200/300 marks
- Rank 42ZestyOwl54guest200/300 marks
- Rank 42SparkyKitten39guest200/300 marks
- Rank 42AgileRobin90guest200/300 marks
- Rank 42CheeryRobin41guest200/300 marks
- Rank 42KeenOcelot45guest200/300 marks
- Rank 48MrTrickySr190/300 marks
- Rank 49VividWren71guest190/300 marks
- Rank 50VapidFerret67175/300 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 of all time. 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.