– Giving kids to count/write/play with Number up to 10
– To get more numbers up to 20, and to 100 (by ten), purchase full feature.
– Parental gate to prevent kids from accessing external links or app store.
– No more ads in the app ever. So 100% safe for Kids.
– Selectable number set, 10, 20 or 100. (full feature)
New version, 1.12, is released with new language added, Arabic.
Thanks to Mona abd Elhady for help translating the content into Arabic.
Now, you can use Abacus on our website. Under Know Abacus menu, open “Play With Abacus” submenu. You will see an Abacus on the center of the page. You may have to wait a bit on slow network about 1MB data download.
To see full screen abacus on your browser on desktop or tablets or mobile phones, click on top/right KnowAbacus icon.
This widget was developed using html5/cocos2d. Enjoy!
– Improve visual
– You can reset all lessons/scores in Settings menu under “Reset Scores”
– New random lessons are added for addition/subtraction. They will include lessons learnt from previous sessions.
- No More Ads on Android — you can remove the ads now
- Share your success on Facebook
- Fix orientation issues on new devices, such as Galaxy S4
Sorry, no change on Lessons in this version. Stay tunes for them in next release.
On February 14 , we just release a long waiting version of Know Number for Android.
It might not be perfect as on Apple devices but it’s FREE and hope your kids will enjoy it.
Thank you for all feedback. Now you have Division lessons and a full 9-digit Abacus.
Android update version 1.4
- Improve support for high density devices
- Tablet friendtly
Good News! Next steps for all Abacus learners are here!
- Multiplication lessons
- Mental math lessons for addition, subtraction and multiplication. Performing calculation by visualizing abacus in your mind is a great way to keep your brain sharp.
- 2 digit addition and subtraction. This advance mode can be changed under setting menu.