If you have ever tried to paste an equation into the Windows Calculator, you already know that it does not work. In order to paste equations into the calculator and get the results, you need to copy the equation to the clipboard and then insert it into the Calculator.

For example, to get the results of the equation 18+21+42+12= , highlight the equation and press Control + Insert. Next, you can open the Calculator and press Shift + Insert. The results of the equation will automatically appear. Two things to keep in mind when you are using this tip are that the equation cannot contain any spaces and it must end with an equal sign.