CrossAdd

你们接受越过加法和减法的挑战？尝试CrossAdd！

Fast and challenging mathematical game based on INCO.

Rules are fair simple:

★ Select a cell to reduce by one it's value and the value of all those in the same row and column.

★ Reset to zero all the cells to clear a level and move to the next.

Twenty levels of increasing difficulty to challenge even the most brilliant mind.

And you, on which level will you give up?

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Internet access: Required by adv and Facebook share

Network status: Required by adv