PetitCalc

This is an easy-to-treat four-operations game.

What players need is to continue tapping an operation and two numbers until the last number
becomes the target value. Players tap one of the (+,-,/,*) and two numbers so that the last number becomes the target value.

Even when you select the subtraction or division,
the calculation result is not influenced by the tapping order of two numbers.
The subtraction operation subtracts the smaller number from the larger one.
And the division operation, if possible, divides the larger number by the smaller one.

With long-term-taping the screen in an alphametic mode, you can replace the symbol with a candidate number.

Additionally this game provides a way for you to see one of the answers when you give up solving a problem.
You can retry the same problem after you solve it, so that you can compete with your friends.