# Elementary Arithmetic and Calculator

**Topics:**Elementary arithmetic, Calculator, Real number

**Pages:**3 (529 words)

**Published:**April 23, 2013

The Simple Virtual Calculator supports the following operations: • Addition (key '+')

• Subtraction (key '-')

• Multiplication (key 'X')

• Division (key '/')

Memory Operation

The calculator has one memory that can be used for storing values temporarily. To clear the memory (set it's value to 0), press the key 'MC'. To recall the value stored in memory use the key 'MR'. To add to the value in memory, press 'M+'. To subtract a value from the memory use the key 'M-'. Turn the calculator on by pressing the "On/C" button. Turn the device off by pushing the "2ndF" button and then "Off." ON

CE.C clears the last number you entered (‘clear entry’) and turns the calculator on. AC clears all numbers entered (‘all clear’).

This is what a calculator can look like. However, every calculator is slightly different. Keys

÷ x + are called operation keys.

0. is the display (for the numbers you have entered

and the answer when you finish).

More function keys

These keys are called advanced function keys.

% is the percentage key.

+/- changes between positive and negative numbers.

MR M- M+ MC are memory keys.

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Modes = Press mode then relevant number depending on what operating mode you wish to use(stats mode is usually one of the options) Or

Press Stat button on calculator to operate the calculator in statistics mode Off = Turns off the calculator in any functional mode

ON = Swithces on the calculator

C = cancel all input into the calculator

CE = cancel last entry into calculator

Basic Calculations = x, -, +, / These are the basic calculations to all mathematical solutions. Numbers = The...

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