Chapters

Introduction

Learning Objectives

Recap of past learning

Rounding numbers ... why do we need to?

How do we round numbers to a certain number of decimal places?

Rounding numbers without decimal places

Scientific notation

All numbers can be written in scientific notation

All numbers can be written in scientific notation with decimal numbers

Bouncing decimals

Examples

Doing things backwards

Significant figures

Examples of significant figures

Summary

Approximations, decimal places and significant figures

Computation and practical arithmetic

Year 11

This videos looks at why we need to approximate and how we can use different methods to find approximations. I look at Usain Bolts time of 9.58 and wonder if that was his actual time. I show how to round to a certain number of decimal places. I look at significant figures. I have lots of worked examples all explained using clear and easy to understand theory. This is another video as part of the General Maths Units 1 and 2 course.

Published: July 14, 2020

Length: 25 mins and 55 seconds

Lesson notes

Lesson notes are provided in PDF format and can be downloaded by clicking the link below:

Exam resources

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Video tags

vce maths
maths tutorials
Approximations decimal places and significant figu
vce general maths
general maths
general units 1 and 2
year 11 maths
grade 11 maths
decimal places
approximation
significant figures
rounding to decimal places
rounding to significant figures

LEGAL STUFF

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