![]() In Ancient Greece, abacus appeared in the 5th century BC. Presumably, the first Abacus appeared in ancient Babylon about 3 thousand years BC. Abacus was a grooved board with movable counting labels (stones or bones). The ancestor of the modern calculator is Abacus, which means "board" in Latin. You can see the current math calculations in a smaller display that is below the main display of the calculator.Ĭalculations order for this given example is the following: 2+2=4, subtotal - 4. Why do we get 8 when trying to calculate 2+2x2 with a calculator?Ĭalculator performs mathematical operations in accordance with the order they are entered. įrequently asked questions about the calculator To enter (divide) - key on the numeric keypad on the right or a combination of keys and. To enter (multiplication) - key on the numeric keypad on the right or a combination of keys and. To enter - key at the top or key on the right. Pricier financial calculators run in the 40 to 70 range. These will do basic work very nicely, but they don’t usually have extra features, such as multi-line display screens or the ability to track appointments. ![]() To enter - key at the top or key on the numeric keypad on the right. The least-expensive financial calculators cost between 20 and 40. To erase the last character - (arrow keys). To use free online calculator you can use both ordinary numeric buttons at the top of a keyboard and numeric buttons on the right of a keyboard. Disclaimer: Each calculator available for use on this web site and referenced in the following directories - finance calculator, retirement calculator, mortgage calculator, investment calculator, savings calculator, auto loan calculator, credit card calculator, or loan calculator - is believed to be accurate. The result is equal to 625.ĭeduction percentage of the number: 500 25. ![]() The result is equal to 5(%).Īdding percentage to the number: 500 25. The result is equal to 125.Ĭalculating what percent is one number of another number: 25 500. The result is equal to 81.Ĭalculation of percentage of the number of: 500 25. resets the calculator without resetting the memory.Įxamples of calculations on the online calculatorĬalculate the square root of 529: 529. reset the calculator and reset the memory addition, - subtraction, - multiplication, - division remove the last character on the display Instructions for using the online calculator Keys function This means youve got the best chance of finding a deal that works for you and. Detailed instructions for using the calculator, see below. Calculate your monthly car loan payments with our car finance calculator. You can make not only simple math calculations and calculation of interest on the loan and bank lending rates, the calculation of the cost of works and utilities.Ĭommands for the online calculator you can enter not only the mouse, but with a digital computer keyboard. ![]() Use for work, school or personal calculations. Large, easy and convenient online calculator ![]()
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