Make the right task

The program will help develop mathematical abilities in calculating examples by logically selecting the members of arithmetic operations.
During the task, the arithmetic expression with the result and the places for inserting the number is displayed. Among the proposed set of numbers, it is necessary to choose the correct variants.
The program has the ability to:
- adjusting the range of numbers;
- number of tasks;
- operators for the task.
The result of the execution is displayed at the end of all tasks.