The Concentration Grid

HOW TO: Click each number starting from 00 up to 99. Your time will automatically recorded and you can veiw it in your history. If you forget which number to look for the "Current Number" display will help you.

NOTE: Navigating away from this page will cancel your time

Clicking the start button will begin the timer.

29881973351269096615
14623979612787309798
48710772139936816883
22554432643349374775
38765182864577347417
10849354856700652396
63465394319502580441
92561820212442784016
70030605116091902657
52012589085980435028

Time:

CURRENT NUMBER:00

Congratulations!

You completed the concentration grid with a time of

Record this to chart your progress over time.

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