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Home โ€บ โž— Brain & Math

โž— Flash Mental Math: Add Up the Numbers That Just Vanished

Numbers flash on screen one after another and disappear, and you type the total you kept in your head. There are no answer choices โ€” only the exact figure counts, so guessing gets you nowhere. Fifteen rounds, each with more numbers on screen for less time, from two numbers at 0.9 seconds down to seven at 0.42. Later rounds are worth up to twice as much and a fast answer adds up to 50% on top, for a maximum of 3375 points.

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๐Ÿ’ก How to play โ€” Numbers flash on screen one after another and vanish โ€” add them up in your head and type the total. There are no answer choices, so an exact number is the only thing that counts; guessing gets you nowhere. Fifteen rounds, and each one adds more numbers while showing each one for less time, from two numbers at 0.9 seconds down to seven at 0.42. Later rounds are worth up to twice as much, and answering quickly adds up to 50% on top, for a maximum of 3375 points.

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