21

21 là một trò chơi đố gây nghiện, chỉ cần thêm lên và đạt được mục tiêu.

21 is an addictive puzzle game, just add up and achieve the goal.

How it works:

Adding up the numbers, you must meet or exceed the number on the smallest box. This is your goal.

The units can be add up between them. 2 + 5 = 7, but can not be add up to the tens. 2 + 17 = Null

Hundreds can be add up between them. 101 + 120 = 221

The Star (wildcard) can be add up to any number.

The tens can only be add up between them, if start with the same number. 12 + 13 = 25 but 12 + 23 = Null

For new game, press box points (upper box).

Improve your record. You will not be able to stop playing!!!

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