![]() When calculating a percentage of a certain number, pressing the % sign will automatically display the percentage value as a decimal. For example, if the answer is 0.00000007, the calculator will return 7e-8, which stands for 7×10⁻⁸. In that case, the calculator will use the scientific e-notation to display the answer. Suppose the resulting number is very large or small after you perform some calculations. R0 stands for "Round to 0 decimals." In our previous example, rounding 3.98124567 to 0 decimals would result in the following number: 4. R2 stands for "Round to 2 decimals." For example, if, after some calculations, you end up with a number that looks something like this: 3.98124567, you can press R2 to approximate it to a simpler-looking number, which in this case will look like this: 3.98. does not clear the memory you need to press mc for that. Then you can press 3 and hit the = sign to get the answer to the required question. before hitting the = sign, which will only delete the last entry – 4 – while keeping the first entry – 8 – intact. For example, if you would like to calculate 8-3=? but you have accidentally entered 8-4, you can press C.E. stands for "All Clear." Press this button when you want to delete all previous entries. Note that this button only becomes visible after you have made at least one entry and the screen is not empty.Ī.C. is an abbreviation for "Clear Entry" and should be used to remove the current entry. M+ stands for "Memory Plus." Similarly to m-, when m+ is pressed, you will add the number on the screen to the current number in the calculator's memory.Ĭ.E. M- stands for "Memory Minus." When this button is pressed, the number currently on the screen will be subtracted from the number stored in the calculator's memory. If the calculator memory is empty, mr will return zero. Mr stands for "Memory Recall", press it when you want to recall the number currently stored in the calculator's memory. Mc stands for "Memory Clear", you press it when you want to clear the calculator's memory. Directions for useīelow are the special commands included in the calculator: While the operations listed above are sometimes easy to perform mentally, a simple calculator can be handy for working with large numbers and decimals. The calculator takes integers or decimal numbers as inputs. identifying, adding, and subtracting a percentage.This standard calculator performs the following procedures: The online calculator allows you to perform the standard mathematical operations quickly.
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