Add Up to 21
R$ 4,90
1.3for iPhone, iPad and more
Age Rating
Add Up to 21 Capturas de tela
About Add Up to 21
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 you will be able to pick the right numbers for the sum of 21. Doing this can truly sharpen your skills and performance to computing in brain without using pen and paper.
Your best performance is saved, along with the date and time you created it.
This app is for pre-school, 1st grade, 2nd grade students and senior citizens who want to keep their brain sharp.
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 you will be able to pick the right numbers for the sum of 21. Doing this can truly sharpen your skills and performance to computing in brain without using pen and paper.
Your best performance is saved, along with the date and time you created it.
This app is for pre-school, 1st grade, 2nd grade students and senior citizens who want to keep their brain sharp.
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Novidades da Última Versão 1.3
Last updated on Sep 28, 2021
Versões Antigas
Update the app so that it runs on the device with the latest iOS version.
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Version History
1.3
Sep 28, 2021
Update the app so that it runs on the device with the latest iOS version.
1.2
Mar 2, 2020
adjust the screen layout so that it runs on various version of iOS
1.1
Jan 30, 2017
Fix a critical bug.
1.0
Jan 18, 2017
Add Up to 21 FAQ
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Confira a lista a seguir para ver os requisitos mínimos de Add Up to 21.
iPhone
Requer o iOS 8.0 ou posterior.
iPad
Requer o iPadOS 8.0 ou posterior.
iPod touch
Requer o iOS 8.0 ou posterior.
Add Up to 21 suporta Inglês