Code Crackers


Pick the right number and score big on this brain-busting game.

The “Lost” castaways are followed by the mysterious sequence– 4, 8, 15, 16, 23, 42– and they’re not alone. You’re about to face off with 11 mysterious sequences of your own. If you can spot the pattern, you can crack the code– and maybe even pick up a trick or two that’ll boost your ACT math score.

Source: The Online Encyclopedia of Interger Sequences

Code Crackers

Quiz: Code Crackers


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