Calculator Keypad



Calculator Operations

This basic online calculator is similar to a small handheld calculator and has the standard four functions for addition, subtraction, division and multiplication. Like most 4-function calculators it also includes keys for percent, square, square root and pi. This basic calculator has decimal precision up to 10 digits and offers these functions:

  • mc = Memory Clear: clear calculator memory
  • m+ = Memory Plus: add displayed value to memory
  • m- = Memory Minus: subtract displayed value from memory
  • mr = Memory Recall: display the memory value
  • CE = Clear Entry: clear current display value, changes to AC
  • AC = All Clear: clear all and start a new operation
  • √x = Square Root: take the square root of the displayed value and display it
  • +/- = Plus/Minus: change the sign of the displayed value from positive to negative or vice versa
  • π = pi: display the value of π as 3.141592654 to use in a calculation
  • x² = Square: square the displayed value and display it
  • R2 = Round to 2 decimals: round the current display value to 2 decimal places such as in money or currency format
  • R0 = Round to 0 decimals: round off the current display value to 0 decimal places
  • % = Percent: use displayed value to calculate a percentage

Accessible Calculator Features

Zoom: Increase the size of the calculator in your browser using your browser's zoom feature. The size of the calculator, text and buttons changes proportionately.

Usb Calculator Keypad

Vintage pocket calculator with solar power Vintage pocket calculator, with both battery and solar power, and math operations limited to multiplication, division, addition, subtraction and square root. Isolated on a punchy pastel background calculator keypad buttons stock pictures, royalty-free photos & images. Number Keypad Control: You can use the calculator with with most Number Pads and Keyboards in the most popular browsers for numbers, clear, and the basic functions of addition, subtraction, multiplication, and division and delete/backspace. Please Contact Me if you have any suggestions. This is a great option for Keypad for your Laptop or your Mac Wireless Keypadless Keyboard, brought to you by the Mac Centre Norwood.To find out more about t.

Touch Screen Zoom: Increase the size of the calculator on your touch screen by zooming with your fingers. The size of the calculator, text and buttons changes proportionately.

Calculator Keypad

Text Size: In some browsers, such as Chrome desktop, you can change the text size in your browser settings and the size of the calculator, text and buttons will get larger or smaller proportionately.

Keyboard Control: You can use the calculator without a mouse by tabbing among the calculator keys. Press 'Enter' when a key is focused. This method can be arduous however, since you must tab through all keys in sequence.

Calculator Keypad Layout

Calculator keypad functions

Bluetooth Calculator Keypad

Number Keypad Control: You can use the calculator with with most Number Pads and Keyboards in the most popular browsers for numbers, clear, and the basic functions of addition, subtraction, multiplication, and division and delete/backspace.

Please Contact Me if you have any suggestions.

Calculating Percentages

Usb Calculator For Laptop

  • Multiplication and Division will convert the displayed value to a percent in decimal form and complete the operation when you press [=]
    • Example: find 20% of 25
    • Enter 25 x 20 % and the display changes 20% to 0.2
    • Enter = to complete the calculation 25 x 0.2 = 5. The answer 5 shows in the display.
  • Addition and Subtraction will add or subtract the percentage of a value
    • Example: add 20% to 25
    • Enter 25 + 20 % and the display changes to 5. (5 is 20% of 25)
    • Enter = to complete the calculation 25 + 5 = 30. The answer 30 shows in the display.
  • Tax Calculation
    • Example: add 6% tax to a purchase of $851
    • Enter 851 + 6 % and the display changes to 51.06. (51.06 is 6% of 851)
    • Enter = to complete the calculation 851 + 51.06 = 902.06. The answer 902.06 shows in the display.
    • Note: for other problems you might get an answer with more than 2 decimal places. Use the R2 key to round off to dollars and cents. Use R0 to round off to only dollars.