In this lesson, let’s look at finding percentage increase or decrease in a quantity. This is common in real-life situations…
Comparing 2 Quantities by Percentage
Sometimes, we want to compare two groups to see which has a greater proportion of something. One way to do…
Percentage – Expressing One Quantity as a Percentage of Another
In Mathematics, we often need to compare two quantities. One useful way to compare them is by expressing one quantity…
Problem Sums on Ratio
Now that we have looked at what ratios are and how to simplify them, let’s look at problem sums on…
An Introduction to Ratio
In Mathematics, ratio is a way to compare two or more quantities. Ratios tell us how big one quantity is…
Estimation and Approximation
Approximation is a method used in mathematics to find a value that is close to the exact number, but not…
An Introduction to Inequalities
Inequalities are mathematical statements that compare two values, showing that one number is greater than, less than, or sometimes equal…
Representing Numbers on the Number Line
A number line is a visual tool used in mathematics to show the position of numbers in order. It is…
Calculations with Calculators – for Secondary School Math
For Math in Secondary Schools, students are allowed to use the calculators for Math Papers. Only non- programmable scientific calculators…
Negative Numbers
Negative numbers are numbers less than zero, written with a minus sign (−). In this lesson, we’ll look at: Comparing…