Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.
Brain Booster helps make cognitive training a habit. The application allows you to work in different areas while having fun and pushing your limits: mental arithmetic, memorization, reflexes.


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KBruch is a small program to practice calculating with fractions and percentages. Different exercises are provided for this purpose and you can use the learning mode to practice with fractions. The program checks the user's input and gives feedback.


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