About
Add Up to 21 is a single player action game. It was developed by Yonggao Yang and was released on January 18, 2017.
Poker Blackjack is a popular game related to adding numbers to 21. This app adopts this idea to train your brain to add number fast without paper and pen. You are challenged to do this as fast as you can within 3 minutes: pick cards from the 7 given number-cards so that the sum of them is 21. Each number-card is a poker card with a value in the range of 1 to 13. The more you practice, the faster y…
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Frequently Asked Questions
Add Up to 21 is a action game.
Add Up to 21 is available on Phone, iPad, iPhone, Tablet and others.
Add Up to 21 was released on January 18, 2017.
Add Up to 21 was developed by Yonggao Yang.
Add Up to 21 is a single player game.
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