In Ancient Greece, abacus appeared in the 5th century BC. Presumably, the first Abacus appeared in ancient Babylon about 3 thousand years BC. Add, subtract, multiply, and divide numbers with. Abacus was a grooved board with movable counting labels (stones or bones). Best Free simple online calculator - Perform basic calculations effortlessly with our simple calculator. 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. Use them to create a budget, figure out how much to save for retirement, find your debt-free date and more. To enter (multiplication) - key on the numeric keypad on the right or a combination of keys and. These free calculators, tools and quizzes can help you navigate your financial journey. To enter - key at the top or key on the right. To enter - key at the top or key on the numeric keypad on the right. Includes basic handheld calculator functions for square, square root, percent, sign change, Pi and memory. To erase the last character - (arrow keys). Basic Online Calculator with 10-digit keypad and standard operators to add, subtract, multiply and divide numbers. 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. 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 Online Free Calculator To Perform Simple Arithmetic Operations With Whole Numbers And Decimals. addition, - subtraction, - multiplication, - division remove the last character on the display Instructions for using the online calculator Keys function Detailed instructions for using the calculator, see below. 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. Yet, calculators run out of batteries, can be hard to keep track of, and arent good for much outside of basic calculations. Basic calculators can do only addition, subtraction, multiplication and division. Large, easy and convenient online calculator A calculator is a device that performs arithmetic operations on numbers.
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