This Project is usable under CreativeCommons BY-NC-SA-License:
Attribution - You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NonCommercial - You may not use the material for commercial purposes .
ShareAlike - If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. In the top left corner you find the gear-button for the settings. In the top right corner is the reload button to create new tasks. In the center is on the left the field with the task and the solution.
If you click on the gear wheel button, the settings window is displayed.
In the upper part of the settings window there are radio buttons with which you can select the task type: Addition, Subtraction, Multiplication, Division or Mixed.
In the lower part of the settings window there is a slider with which you can select the number of digits.
Below the settings window there are buttons for saving the current setting or canceling and exiting the settings window.
You can enter your answer in the field below the word “Solution”. To check your solution press the enter-key. If your solution is not correct, the text field will turn red and you will be given another opportunity to solve the task.
If your solution is not correct, the text field is emptied and a new task is automatically created.
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