## Integers – Basic understanding

When you watch this video, you will see that integers can be thought of moving up and down in an elevator When moving up, the sign will be positive and when moving down, the sign will be negative. Once you…

## Percentages – Increase and Decrease

How do you determine an item’s price if there is a percentage increase or decrease? In other words, what should you pay if there is a discount or if there is an increase in the price? To determine the new…

## Exponents – Calculations exercises – for Grade 7 (12 years and older)

This video consists of calculations to practice the laws of exponents on a basic level. The order of operations plays an important part and Grade 7 learners, ages 12 and up, will benefit to practice the different calculations.

## What are Percentages

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…

## Order of Operations and Properties of Whole Numbers

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…

## Operations with Whole Numbers

When doing operations with whole numbers, it is important to know that zero is the identity element of addition and 1 is the identity element of multiplication. What does that mean? When adding a zero to any number, the number’s…