This game is a training practice or test the addition that more difficult than adding the basic number. In the game you can choose 2 levels, there is a positive number, 2 or 3 position, which is suitable for children of different levels.The 1st level is a little bit easy (5+2+3=?) and the 2nd is harder question (22+36+89), it suitable for children about grade 3 or more. So select the best level for your children and help them to practice is more effective.
It's now available on
App Store.
https://itunes.apple.com/us/app/math-practice-3-number-addition/id1238308328?mt=8