# Math Tutorial 8.1 - Writing Formulas and Substituting in a Formula

There are 6 lessons in this math tutorial covering Writing Formulas and Substituting in a Formula. The tutorial starts with an introduction to Writing Formulas and Substituting in a Formula and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific math lesson as required to build your math knowledge of Writing Formulas and Substituting in a Formula. you can access all the lessons from this tutorial below.

In this Math tutorial, you will learn:

• What is a mathematical sentence?
• What are mathematical operators?
• Where does a mathematical sentence differ from a wordy sentence?
• What are formulas? Why do we use them?
• How to write a formula? What do we call its components?
• What types of variables are there in a formula?
• How to substitute the variables in a formula?
• What is the procedure used when solving an exercise containing formulas?
• How to convert wordy problems into formulas and vice-versa?
• How to find the inverse formula when the original formula is known?

## Introduction

How do you find the area of a square? Rectangle? Circle? Do you express the entire sentence in words or would you use a shorter method for this?

How do you express the fact that speed in a uniform motion is calculated by dividing distance and time?

How do you calculate the price of a product if the cost and profit are both known?

What do you understand by the term 'formula'? Could you remember two formulas from physics and two from chemistry? What about finance and banking? Are there any formulas in these fields?

This tutorial is focused on writing formulas and substituting quantities in a formula to find an unknown quantity in an easy way. Giving that formulas are present in many applied sciences, this is a very important topic with many applications in daily life.

Please select a specific "Writing Formulas and Substituting in a Formula" lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this math topic.

Formulas Learning Material
Tutorial IDMath Tutorial TitleTutorialVideo
Tutorial
Revision
Notes
Revision
Questions
8.1Writing Formulas and Substituting in a Formula
Lesson IDMath Lesson TitleLessonVideo
Lesson
8.1.1Mathematical vs Word Sentences
8.1.2What is a Formula? How do we Write Formulas?
8.1.3Expressing Events in a Shorter Way using Formulas
8.1.4Substituting into a Formula
8.1.5Substituting in Formulas derived from Wordy Problems
8.1.6Finding the Inverse Formula

## Whats next?

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3. Formulas Revision Notes: Writing Formulas and Substituting in a Formula. Print the notes so you can revise the key points covered in the math tutorial for Writing Formulas and Substituting in a Formula
4. Formulas Practice Questions: Writing Formulas and Substituting in a Formula. Test and improve your knowledge of Writing Formulas and Substituting in a Formula with example questins and answers
5. Check your calculations for Formulas questions with our excellent Formulas calculators which contain full equations and calculations clearly displayed line by line. See the Formulas Calculators by iCalculator™ below.
6. Continuing learning formulas - read our next math tutorial: Types of Formulas. Rearranging Formulas