Hexlet tests and linter status:

Game: "Evenness Check"

The essence of the game is as follows: a random number is shown to the user. And he needs to answer yes if the number is even or no if it is odd.:

Game: "Calculator"

The essence of the game is as follows: a random mathematical expression is shown to the user, for example 35 + 16, which needs to be calculated and the correct answer written.

The game "GCD" (Greatest Common Divisor)

The essence of the game is as follows: the user is shown two random numbers, for example, 25 50. The user must calculate and enter the greatest common divisor of these numbers.

"Arithmetic Progression" game.

We show the player a series of numbers forming an arithmetic progression, replacing any of the numbers with two dots. The player must determine this number.

The game "Is it a prime number?"

There is a strange phenomenon, the game shows the number 4 and says it is prime, although it is not. We will fix the logic. So somewhere we made a mistake!