Age Rating
Add Up to 21 スクリーンショット
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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最新バージョン 1.3 の更新情報
Last updated on 2021年09月28日
旧バージョン
Update the app so that it runs on the device with the latest iOS version.
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Version History
1.3
2021年09月28日
Update the app so that it runs on the device with the latest iOS version.
1.2
2020年03月02日
adjust the screen layout so that it runs on various version of iOS
1.1
2017年01月30日
Fix a critical bug.
1.0
2017年01月18日
Add Up to 21 価格
今日:
¥100
最低価格:
¥100
最高価格:
¥160
Add Up to 21 FAQ
ここをクリック！地理的に制限されているアプリのダウンロード方法をご参考ください。
次のリストをチェックして、Add Up to 21の最低システム要件をご確認ください。
iPhone
iOS 8.0以降が必要です。
iPad
iPadOS 8.0以降が必要です。
iPod touch
iOS 8.0以降が必要です。
Add Up to 21は次の言語がサポートされています。 英語
