Sumalo: Fast Mental Math

New game modes, seasonal leagues & real-time duels. Train your mental math, climb the rankings and prove you're the fastest mind alive.

Is your mind as fast as you think? Put your number reflexes to the test with Sumalo.

Welcome to the ultimate mental agility and rapid calculation challenge. Sumalo is not just a math game — it's a competitive platform designed to push your processing power to the limit using the reduced sum technique.

THE CONCEPT: THE 1 TO 9 RULE Forget complex calculations. In Sumalo, the goal is to reduce any operation to a single digit (from 1 to 9). Quick example: 8 + 7 = 15 → 1 + 5 = 6. Your mission is to find that 6 before it's too late! Sounds easy — but can you do it under pressure?

8 GAME MODES TO CHALLENGE YOURSELF Eight unique experiences to keep your brain constantly training: Classic: The pure Sumalo experience. Speed and precision to rack up points without rest. Time Attack: The clock is your worst enemy. How many reduced sums can you solve before time runs out? Guess It: A logical twist. We don't give you the result — we give you part of the operation. Find the missing number. Scale: A comparison challenge. Decide in milliseconds which side of the scale carries the correct mathematical weight. Chain: Put your working memory to the test. Solve number sequences where each result depends on the previous one. Outsider: The ultimate focus mode. Among several results, only one is false — or only one is correct. Can you catch the outsider? Survival: You have 3 lives. Every mistake or timeout costs you one. No global time limit — the game ends when you do. How far can you go? Mission: One goal, one time limit, one shot. Reach the required score before the countdown hits zero. The mode for those who play for real.

COMPETE, CLIMB AND DOMINATE THE SEASONAL RANKINGS Sumalo brings out your most competitive side. The league and season system ensures the competition never sleeps: ELO System and Leagues: Climb the ranks by facing players at your level. Each season resets the standings and gives everyone a fresh shot at the top. Rotating Seasons: Seasons refresh periodically, renewing the competition and keeping the rivalry alive. Every new season is a new chance to prove who's in charge. Real-time Duels: Challenge friends directly or find a random opponent at your level. Every duel wins or costs you ELO. Detailed Statistics: Track your accuracy, reaction time (RT) and winning streaks. Global Ranking: Do you have what it takes to break into the Top 10 worldwide?

WHY CHOOSE SUMALO? Cognitive Training: Improve your focus, memory and mental agility in just 5 minutes a day. For all ages: Perfect for kids who want to master mental arithmetic and adults looking to keep their minds sharp. Smooth Experience: Built with cutting-edge technology to deliver instant tactile response with zero distractions. Download Sumalo today and prove you are the master of the reduced sum!