Computation and practical arithmetic

General Mathematics: Units 1 and 2

Lesson notes

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Chapters

Introduction

Learning Objectives

Recap of past learning

Isn't there only One Direction?

What is a directed number?

Using a number line to add and subtract

Those pesky brackets

Multiplying and dividing negative numbers

Examples using directed numbers

Summary

Description

This is the next video in the General Maths series. Looking at Directed Numbers I spend some time explaining what directed numbers are and how we can use number lines to express them. I then look at how we can add, subtract, multiply and divide the directed numbers and the rules we need to apply when doing so. There are lots of worked examples all backed by easy to understand and clear theory.

Video tags

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directed number
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subtracting directed numbers
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multiplying directed numbers
dividing directed numbers