Fast, fun subtraction practice — built for mobile, tablet, and desktop.
Patient details are optional. Choose a mode and number of attempts, then tap Start Game (full screen).
1) Select Mode and Number of attempts.
2) Tap Start Game → the game opens in full screen.
3) For each question, choose the correct answer from 8 options.
4) Each question has a countdown timer (Easy: 20s, Moderate: 15s, Hard: 10s). If time ends, the game automatically moves to the next question.
✅ Every correct answer = 10 points
⭐ Bonus +1 point if answered in less than 50% of the allowed time
Maximum Possible Score = (Attempts × 10) + (Attempts)
SMHS Score (Sensing Medicine Healing Subtraction Score) = (Total Score ÷ Maximum Possible Score) × 100
Time left: 20s
Summary
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