# Flowchart Bills - Selling Textbooks

## Calculate bill totals by following the instructions given in the form of a flow chart.

##### Level 1Level 2Level 3DescriptionInvestigationMore Money Maths

This is level 1; Selling Textbooks You can earn a trophy if you get at least 7 correct.

You have started a new job preparing bills and the boss has sketched this flow chart to show how the totals are arrived at. Calculate the cost of the items on the right:

 6 books £ 17 books £ 2 books £ 22 books £ 1 book £ 11 books £ 38 books £ 5 books £ 10 books £ 20 books £
Check

This is level 1. You can also try:
Level 2 Level 3

## Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

## Transum.org

This web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available.

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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

Comment recorded on the 9 May 'Starter of the Day' page by Liz, Kuwait:

"I would like to thank you for the excellent resources which I used every day. My students would often turn up early to tackle the starter of the day as there were stamps for the first 5 finishers. We also had a lot of fun with the fun maths. All in all your resources provoked discussion and the students had a lot of fun."

Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield:

"I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information."

#### Connect 4 Factors

A mathematical version of the popular Connect 4 game based on getting four numbers with a common factor in a line. Fun for one, two or a whole class of pupils.

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## Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school.

## Maths Map

Are you looking for something specific? An exercise to supplement the topic you are studying at school at the moment perhaps. Navigate using our Maths Map to find exercises, puzzles and Maths lesson starters grouped by topic.

## Teachers

If you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows:

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## Description of Levels

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### Level 1 - Selling Textbooks

The more textbooks a customer buys the cheaper the unit price. The task at this level is to calculate the cost of buying different numbers of textbooks using the flow chart for guidance.

### Level 2 - Selling Eggs

Similarly buying eggs in bulk is cheaper (per egg) than buying a smaller number of eggs. Traditionally eggs have been sold by the dozen. A dozen is 12.

### Level 3 - Calculating Gas Bills

Paying for gas and electricity usually includes a standing charge and a staged set of charges per unit. The amount of gas is measured in therms.

### Investigation

Try many different starting numbers in the given flowchart. Which starting numbers reach one the fastest? Why?

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.