Choose a math problem to solve and input your answer using the mouse, touchscreen, or keyboard.
Earth's last stand begins now! A relentless alien horde descends – your math skills are humanity's only defense. Crack equations under pressure to power up your orbital laser cannon. Every correct answer fuels its devastating firepower: addition charges the targeting mat...rix, subtraction boosts shield penetration, multiplication unlocks rapid-fire bursts, division primes explosive payloads. Survive wave after wave of extraterrestrial onslaught as problems intensify. One wrong calculation leaves cities vulnerable, but precise solutions unleash apocalyptic beams that vaporize entire attack squadrons. The invasion clock ticks down – you'll face randomized operations, escalating difficulty, and surprise boss battles requiring combo equations. Global leaderboards track your strategic calculations-per-minute. Ready your neural processors... the fate of our civilization crunches numbers at your fingertips!
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