Brain Calculus vs Number Sum Puzzle

Brain Calculus Sharpen your math skills with Brain Calculus! This engaging game challenges you to solve arithmetic problems under time pressure, with the option to disable the timer for a more relaxed experience. Game Features: Timed and Untimed Modes: Race against the clock or take your time to solve problems at your own pace. Variety of Operations: Practice addition, subtraction, multiplication, and division. Customisable Difficulty: Choose single-digit double-digit triple-digit to match your skill level. Interactive Problems: Select from multiple-choice answers and determine the correct placement of the missing number . Ad-Free Experience: Enjoy uninterrupted gameplay with no ads. Offline Play: No internet connection needed

Sumora is a relaxing number game where one simple idea turns into hours of satisfying play. On a 5x5 grid of big, bold tiles, drag your finger across neighboring numbers — up, down, sideways, or diagonally. When the numbers along your path add up to the target, the tiles burst, fresh ones drop in, and your score climbs. Easy to learn, hard to put down. Keep solving without pause to build COMBOS that multiply your score, and watch the whole world change color as you go — from sunny village roads to green forests, rainbow bridges, purple hills, and glowing dawn skies. Special tiles shake things up: ×2 tiles double your score, and bomb tiles clear everything around them. HOW TO PLAY - Drag across connected numbers (diagonals count!) - Make their sum match the target at the top - The path clears and you score — longer paths are worth far more - Solve again quickly to grow your combo multiplier - Keep going and beat your best score FEATURES - Simple one-finger controls anyone can pick up - Big, easy-to-tap tiles — your finger never hides the board - Deep scoring: long paths + combos = huge points - Special ×2 and bomb tiles for big plays - Five hand-painted color worlds that shift as you play - Glossy, candy-bright tiles and satisfying sounds - An animated guide that teaches you in seconds - Colorblind mode and gentle haptics - Free to play How high can you score? Start drawing and find out.