Learn Addition & Subtraction

How to Play:

➕ Addition Mode:

• 2 rows of 9 cells (red & blue) appear below the question.
• Tap 1st row cells to add red balls (1–9).
• Tap 2nd row cells to add blue balls (1–9).
• Double-tap removes that and all right-side balls in same row.

➖ Subtraction Mode:

• 1 row of 9 cells appears.
• Tap to place green balls (1–9).
• Tap again to show a black outline with number.
• Double-tap removes all forward green balls.

✅ Correct answer moves to next question automatically after 2 seconds and plays success sound.

❌ Wrong answer shows red ❌ for 1 second, plays wrong sound and resets selection.