How do I make a math game?

I'm making a sort of educational game, that trains basic math skills, by making different problems (addition, subtraction, multiplication and division) for the player that they have to solve to advance.

I'm having some issues finding a good way of generating the math problems, and checking results that the player inputs, in a streamlined and efficient way. I'm actually kinda stuck here (since i have the rest of the games mechanics in place...mostly), so any help would be greatly appreciated.

Thanks in advance.

Check up the random function to generate random numbers: https://www.scirra.com/tutorials/77/nat ... onstruct-2

Then you can save the correct answer in a variable.