Definition of Calculator

Calculator is a device that performs mathematical operations easily.

More About Calculator

  • Scientific calculators are used to solve complex calculations.
  • Advanced calculators can display graphs.

Example of Calculator


Video Examples: Using a Calculator and Significant figures GCSE Maths revision

Examples of Calculator

Ques: Find the sum of 126 and 248.


    A. 347
    B. 374
    C. 247
    D. 357
    Correct Answer: B


    Step 1: To display 126, press 1, 2, and 6 button of the calculator.
    Step 2: Then press ‘+’.
    Step 3: To display 248, press 2, 4, and 8 button of the calculator.
    Step 4: Finally click on the “=” button and it will display the answer as 374.

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