CALCULATOR

Calculator

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.

Choices:

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

Solution:

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.

Quick Summary

Calculators perform mathematical operations.
Scientific calculators solve complex calculations.
Advanced calculators display graphs.

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🍎 Teacher Insights

Demonstrate the basic functions of the calculator. Encourage students to estimate the answer before using the calculator to check their work. Emphasize the importance of accuracy in entering numbers and understanding the order of operations.

🎓 Prerequisites

Basic counting
Addition
Subtraction

Check Your Knowledge

Q1: What is the sum of 126 and 248?

A. 347 B. 374 C. 247 D. 357

Frequently Asked Questions

Q: What is a calculator used for?
A: A calculator is used to perform mathematical operations such as addition, subtraction, multiplication, and division.

Q: What is a scientific calculator?
A: A scientific calculator is used to solve complex calculations involving trigonometry, logarithms, and other advanced functions.