SumdingerDaily lesson · Top score · 2026-11-04
Ranks 1–22 of 22
- Rank 01SnappyBadger46guest250/300 marks
- Rank 02SnowyToucan82guest225/300 marks
- Rank 03BouncyAlpaca39guest200/300 marks
- Rank 04BubblyMagpie11guest200/300 marks
- Rank 05SleekLemur34200/300 marks
- Rank 06KeenOcelot45guest200/300 marks
- Rank 07Catcloud03195/300 marks
- Rank 08VividWren71guest190/300 marks
- Rank 09CozyFerret61guest190/300 marks
- Rank 10VapidFerret67175/300 marks
- Rank 11SleekEagle49guest160/300 marks
- Rank 12SteadyHeron73guest150/300 marks
- Rank 13KindDolphin51guest150/300 marks
- Rank 13DaringCamel31guest150/300 marks
- Rank 13GroovySwan60guest150/300 marks
- Rank 16SpeedyParrot45guest145/300 marks
- Rank 17JollyPanther83guest135/300 marks
- Rank 18RoyalStork36guest125/300 marks
- Rank 19Fleezyki120/300 marks
- Rank 20QuickHedgehog20guest100/300 marks
- Rank 21trenchwiz100/300 marks
- Rank 22SteadyBison68guest80/300 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 today. 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.