You need a scientific calculator, or one with function keys.
yes they can be used as a calculator!
There are no special keys for this situation. You must simply apply the appropriate formulae.
Open Calculator by clicking the Start button . In the search box, type Calculator, and then, in the list of results, clickCalculator.Click the View menu, and then click the mode that you want.When you switch modes, the current calculation is cleared. Calculation history and numbers stored by the memory keys are retained.Click the calculator keys to perform the calculation you want.
press 1 0 0
it says the times ,add ,divide & minus keys obviously like every calculator
The answer depends on your calculator but many have shortcut keys for "x10x" or something similar.
One very good place to start is the instruction book that came with the calculator when you bought it. There are so many different kinds of calculators that no one book could show you which keys to push on several different calculators.