Find the Sum: Math Speed

From the App Store Source

Find the Sum is a fast, colourful maths game that trains kids to add in their heads – and to do it quickly! HOW TO PLAY Each block shows nine numbers. Exactly one of them is the sum of two others. Tap it! Solve every block and the answers join together into one more block – find the sum there too, and finish the round. BEAT YOUR RECORD The clock starts when the countdown ends. Every level keeps your personal fastest time, and the goal is always the same: be faster than last time. A wrong tap adds 3 seconds, so think fast but think right. 7 LEVELS THAT GROW WITH YOU • Level 0: digit + digit – a gentle start with just 4 blocks • Level 1: digit + 2-digit number • Level 2: 2-digit + 2-digit • Level 3: digit + 3-digit • Level 4: 2-digit + 3-digit • Level 5: 3-digit + 3-digit • Level 6: 4-digit + 4-digit Finish a level fast enough and the next one unlocks. Every block has exactly one right answer, so it is always a puzzle, never a guess. MADE FOR KIDS, SAFE FOR FAMILIES • No ads • No in-app purchases • No internet needed – play anywhere • No accounts and no personal data collected • Cheerful mascot, big friendly buttons and playful animations • Works on phones and tablets, in English and Turkish • Supports reduced-motion and dark mode WHY IT HELPS Quickly spotting that 38 + 27 = 65 is a skill that grows with practice. Short rounds and a clear goal – beat your own time – make daily practice feel like play. A quick round, a clear goal, and a record of your own to beat.

Every number in these answers comes from the data shown above on this page.