➕➖ Signed Integers (+, −, ×, ÷) Meteor Defense Game
Master positive and negative integer arithmetic through intense arcade defense! Solve falling signed expressions, lock onto targets, and activate defense beams before meteors reach your base.
🎮 How to Play
- Meteors fall from space towards your defense platform carrying math problems
- Your plasma defense turret automatically tracks and locks onto the closest threat
- Tap or press (Keys 1–4) the correct answer to activate your defense beam
- Intercept meteors before they hit the ground to defend your energy shield
- Build answer streaks for score multipliers and unlock power-ups: Time Freeze, Shield, & Supercharge!
- Speed increases every 8 meteors. Test your mental speed and fluency!
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🧠 Proven Mental Math Strategies for Rapid Recall
➕
Number Line Walk
For addition, start at the first integer and walk right for positive, left for negative (e.g. -4 + 7 = 3, -2 + (-5) = -7).
➖
Add the Opposite
Subtracting a negative is the same as adding a positive: a − (−b) = a + b (e.g. 5 − (−3) = 8, -4 − (−6) = 2).
✖️
Sign Rules Matrix
Same signs produce positive (+ × + = +, − × − = +). Different signs produce negative (+ × − = −, − × + = −).
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Magnitude Anchor
When adding numbers with opposite signs, find the difference of absolute values and keep the sign of the larger magnitude.
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