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Quickly figure out the right answer. The game will quickly appear a simple calculation problem, you need to calculate the correct answer, each correct...
Quickly figure out the right answer. The game will quickly appear a simple calculation problem, you need to calculate the correct answer, each correct answer your character will fire a bullet to kill the bug in front of you, kill a bug to get a point, come to experience to see how many points you can get. How to play: Mouse click or tap to play