Investigate and calculate ‘best buys’, with and without digital technologies (ACMNA174)
LO: To calculate which item is a better buy.
Know:

What percentage is.

How to calculate the percentage of an item.

How to calculate the unit price of an item.

How different units of measurement is used to measure different quantities. eg.) ml for capacity/volume, g for mass.
Understand:

That percentage can be used to represent a number.

That the bigger the percentage discount doesn’t necessarily mean it’s the betterdiscounted price.
Do:

I can calculate which item is a better buy.
Essential Questions:


What is a percentage?

Why is a percentage always out of 100?

Notes

100% of an item means the full number.

A percentage of a number means, finding a part of the number.