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What's new in Sum Flash Mental Math 1.0.1 • Initial release — flash sum drills offline • Beginner, Intermediate, and Pro levels • Replay same numbers + local stats • Custom digit/speed settings (up to 9 digits) • Named practice reminders twice daily
Flash numbers, add them fast. Beginner to Pro mental sum drills offline.
Not affiliated with Anzan™, Memoriad™, or any exam board. Practice tool only — not a medical or educational certification product. Designed for adult learners and parents. Sum Flash Mental Math trains fast mental addition with flashing number drills. Numbers appear one by one. You keep a running total, then type the sum. Short sessions. Clear levels. Fully offline. HOW IT WORKS • Pick Beginner, Intermediate, or Pro — each card shows digits, count, and flash speed • Watch the flash sequence • Enter the sum on the keypad • See Correct or Miss, then next round, replay the same numbers, or home LEVELS • Beginner — 1-digit numbers, slower flash, shorter sequences • Intermediate — mix of 1–2 digits, faster pace • Pro — larger numbers, quicker intervals • Custom — tune digits (up to 9), count, and flash interval when unlocked TRAINING FEATURES • Offline practice — no account, no internet required for core play • Replay the exact same number sequence • Local stats: accuracy, best streak, recent rounds • Optional daily practice reminders with your name (twice a day) • Haptic feedback toggle PRIVACY Progress, settings, and round history stay on your device. See the in-app About screen and our privacy policy for details. Download Sum Flash Mental Math and start a Beginner round in seconds.