Type an answer · press Enter to vaporize matching ships!
PAUSED
Settings
Difficulty
EASY
MED
HARD
INFERNO
Deep space
VOID
NEBULA
AURORA
Formation speed1.0×
UFO frequency1.0×
Background motion1.0×
MATHINVADERS
defend Planet Numero from the operation-ships
6+7
1 · READ
A formation of math ships drifts down toward you.
13
2 · SOLVE
Type the answer to a ship on the keypad.
ZAP!
3 · FIRE
Enter vaporizes every ship sharing that value.
Clear the formation before it lands. Watch for the UFO mothership — worth 500 points, but it only streaks by for a moment. Operations & speed ramp up in ⚙ Settings.
Keys — 0–9 type · − negative · ⌫ delete · ↵ fire · P pause