Learn how to solve operations with the help of DubluCLIC

Choose the type of operation by clicking on the corresponding sign. Choose the number that you want to make operations with, by clicking on the number buttons on the rectangular plate. Choose "Learn" mode, if you want first to see the results of the operations and move the little circle along the bigger circle in order to go through the table of the chosen operation, with numbers from 1 to 10. Choose "Practice" mode in order to proceed to exercises. The operation shown up in the circle must be solved. Use the number keys in order to write the result of the operation.