The application chooses a number from a specific range, which can be set in the settings. The children have to guess this number. The application will tell the children if the real number is bigger, or smaller, or less or more. In this way children learn to practice with the numbers until 10, 50, 100, 500 or even higher. Also the children will get to know and practice several math concepts, like bigger and smaller.

This application contains three games:
1. Completing a number row:
A row of numbers is shown with a particular jump in between the numbers. The child has to complete the number row. The value of the jump can be set in the settings. In this way, the child also practices the mathematical tables 1, 2, 3 and 5.

2. Guess the number until 50:
In this game children have to guess a number. They will see a field of numbers where you can choose from. Does the number color red, then the number is too low. If the number turns blue, then the number is too high. So the applications tell children to choose the right number.

3. Guess the number until …
The parent/teacher sets the target value. Now the children have to listen carefully to the application. The application will tell if the number of the child or student is too high or too low. This continues until the child has chosen the correct number.