To understand what percentages are, think of it in terms of “per cent”. The “per” means “out of” and the “cent” refers to one hundred. So, “percentage” means out of a hundred. Percentages can be written as common fractions. For the example of 35%, we can write it as 35 out of 100 and then…
What do common fractions, percentages, and decimal fractions have in common? They can all be converted into one another. When converting a common fraction, such as three quarters, into a percentage, we have to make the denominator equal to 100. How do we do that? Multiply the current denominator of fourths with 25 so that…
As many young children, and even adults, find fractions difficult, watching this video will enhance the basic understanding of fractions. Using a chocolate bar to explain the difference between one fourth (quarter) and one halve in a practical manner, this video will let you grasp the concept that one halve is bigger than one fourth…
This mathematics lesson for Grades 7, 8 and 9 will help you to understand what multiples are and how to determine the Lowest Common Multiple (LCM). The rules of divisibility will also be explained in this video lesson. You will learn how to determine whether a number is a multiple of 2, 3, 4, 5,…
Is 2 + 3 x 4 equal to 20 or is it equal to 14? Why are there different answers? To prevent different answers to a calculation, we need to follow a specific order. Thus, we need to apply the order of operations. If you watch this lesson, you will learn what should be done…
What is exponents and what does it mean? How do we write exponents? This mathematics lesson, Introduction to exponents and powers, for Grades 7, 8 and 9 will help you if you struggle with these questions. If you answered yes to any of these questions, then you should definitely watch this video! Not only will…
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