• n-back 1
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  • n-back 4

n-back

< USAGE >
1. Select level (1-10).
2. Memorize the answer of easy addition for the level times.
3. Continue memorizing and tap the last digit of the answer of n times before (NOT current answer).

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If you don't know what is N-Back Task, please see below.
http://en.wikipedia.org/wiki/N-back

Category : Strategy

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