Our calculator gives us so many problems, it isn't broken but we don't know what operation it will show us, it can be an addition or a subtraction but it will always give us two results but only one of them is correct.
It's time to put your skills to add and subtract in three levels as many times as you want, our calculator has thousands of different operations.
But the most important thing is that you don't fall for the jokes of this calculator.
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