iPad Quality Index

21 Marbles

21 Marbles


There are no reviews for this item.
APP STORE SUMMARY
Do you want your child to develop clear logical thought, affinity for math, and perseverance, while playing games? The Balconia Math series is designed by professional mathematicians to challenge children with attractive problems and games.

21 Marbles is an elegant little logical puzzle designed to help children 6-8 years old to remember forever the pairs 6+4, 7+3, 8+2, 9+1, and to challenge older children, adolescents and adults with a quick game of breaking marbles. The puzzles are different every time you play.

21 Marbles was designed for a 7-year old who wanted to sum 20-digit numbers, but kept getting slowed down because of forgetting whether it was 6+3 that was 10 or 7+4, or maybe 6+2... Counting your fingers while holding a pen is just not very comfortable. The memory problem was fully resolved by this game.
IMAGES (7)
1234567
21 Marbles screenshot #1
21 Marbles screenshot #2
21 Marbles screenshot #3
21 Marbles screenshot #4
21 Marbles screenshot #5
21 Marbles screenshot #6
21 Marbles screenshot #7
OTHER GAMES & APPS FROM ELITZA MANEVA
83903232
3e9c60a9037b66b5a691d68c2eff1e1d
Quality Index
n/a
Awaiting
2 reviews
Publisher: Elitza Maneva
Formats(s): iPad2Wifi-iPad2Wifi, iPad23G-iPad23G, iPhone4S-iPhone4S, iPadThirdGen-iPadThirdGen, iPadThirdGen4G-iPadThirdGen4G, iPhone5-iPhone5, iPodTouchFifthGen-iPodTouchFifthGen, iPadFourthGen-iPadFourthGen, iPadFourthGen4G-iPadFourthGen4G, iPadMini-iPadMini, iPadMini4G
Genre(s): Education, Family, Puzzle, Games
Filesize: 46MB
Age rating: 4+
App version: 1.0.1
21 Marbles image #1
APP ACTIVITY
21 Mar 2018
 
Version: 1.0.1
21 Mar 2018
 
News
Features
20 Apr 2018
Hottest games on the UK App Store right now
13 Apr 2018
Hottest games on the UK App Store right now
06 Apr 2018
Hottest games on the UK App Store right now
30 Mar 2018
Hottest games on the UK App Store right now
23 Mar 2018
Hottest games on the UK App Store right now
Latest Releases
24 Apr 2018
24 Apr 2018
24 Apr 2018


Extra...
What is the Quality Index?
WHAT IS THE QUALITY INDEX? Condensing critical opinion from the best websites into one definitive score
CONTACT US All the right links to get in touch with the Quality Index team.
GET LISTED! Only the best sites feature on the Quality Index - does yours deserve to join them?
Rss Feeds
RSS FEEDS Keep tabs on the latest news, scores, and entries in the Quality Index.
SYNDICATION & DATA Looking for independent critical data? Find out how you can start using the Qi on your portal.
ADVERTISE WITH US Give your apps a little extra promotion with the biggest independent iPhone Advertising Network.