Guitar For Sale

Boy with guitar

On Monday Carlos bought a guitar for £7

On Tuesday he sold it for £18

On Wednesday he bought it back for £32

On Thursday he needed money for a football match so he again sold his guitar, this time for £42.

Overall, did Carlos make or lose money?

A Mathematics Lesson Starter Of The Day

Topics: Starter | Money

  • J Duhig, Stevenage
  • I LOVE these starters, the book worm one is my recent favourite! I use them almost every day. Thanks!
  • Fahmin Begum Ali, Central Foundation Girls School
  • I love Transum. My teacher starts our maths lesson off with a starter everyday and its great. I would like to suggest that Transum gives more harder starters though. But overall Transum is GREAT!
  • Salif Fonso, WLA , Northolt, Middlesex
  • When he started without a guitar he had £7 in his pocket. At th end of it all(without the guitar once more) he had £14 in his pocket. That means he made £7 not £14 as the answer section states.
  • Mr McLaughlin And Primary 5, St Bernadette's Primary School, Motherwell
  • We found this quite challenging but worked out the answer in the end. It was good fun and it taught us about profit and loss. It was like being in The Apprentice!
  • Transum,
  • Thanks to everyone for their comments. It may be worth mentioning that each time this page is loaded a different set of figures is given for the guitar transactions. That means that you could use this starter more than once with the same class!
  • Miss Robbins, Green Hill Lower
  • This starter was really engaging... I found it was just the right length and the right amount of time it took to answer. In this time the children really enjoyed doing it. As our class isn't top, we did spend a little longer than other classes would have but it was still a great aspect to the lesson. I found that this was great homework to! I one of these starters for homework to take 10 minutes as everybody came in the next day saying it was a great homework and they would love to do it again, now we have a brain question every week ( one of your starters! ) I even found that with these there great fun for the kids to do as an extension in class. These starters also helped me find the people who were struggling and I did some different tasks for them to do (from Transum!) and they loved it. They still love maths! Your website makes people love maths of all ages!

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
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Previous Day | This starter is for 6 February | Next Day


Globe of Flags

This activity is suitable for students of mathematics all around the world. Use the button below to change the currency symbol used to make it more relevant to your students. You may wish to choose an unfamiliar currency to extend your students' experience.

Globe of Flags


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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

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Laptops In Lessons

Teacher, do your students have access to computers such as tablets, iPads or Laptops?  This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:

However it would be better to assign one of the student interactive activities below.

Laptops In Lessons

Here is the URL which will take them to a related student activity.

Student Activity


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