Percentage Estimates

Estimate the percentages represented by the indicated regions.

A Mathematics Lesson Starter Of The Day


Topics: Starter | Estimating | Percentages

  • Inger Kisby, Herts and Essex High School
  • Just a quick note to say that we use a lot of your starters. It is lovely to have so many different ideas to start a lesson with. Thank you very much and keep up the good work.
  • Kerri Smith, Fish Creek Primary School, Australia
  • This site is just brilliant to use with my interactive whiteboard! We do the current day, plus a couple of oldies at the start of each maths session. It really motivates my boys, in particular, FANTASTIC!!!
  • Daisy And Ole, Year 6, Beckley Primary
  • This was a really good warm up.
  • Merry, Australia
  • These are great but do you have the answers somewhere..I am new to this website and just learning how to use it. Some more suited to Junior primary children would be great!
  • Transum,
  • Thanks for your comments Merry. Scroll down the page to find the answers which are available to teachers, parents and tutors when they are signed in to a Transum subscription account.
  • Miss Reakes, West Island School, Hong Kong
  • My Year 10 students were asked to add up their 6 differences. They got very excited both when the answers were being revealed and especially when we were counting down through the errors to reveal the most accurate student!!
  • Mr Blake, Herne Bay Juniors
  • My year 6 Maths group really love these starters. Keep up the good work.
  • Transum,
  • Good to hear that you find the starters useful. Don't forget that many of them are generated randomly so refreshing the page shows different numbers. This makes them useful to revisit and practise skills and techniques learned. The answers to the starters appear further down the page. It's great to receive your feedback!
  • Sylvain - Year 6, Charnwood Primary School
  • More questions or the option to change the shapes would be good.
  • Omoregie Lucky, Nigeria
  • The starters are great. My students love them.
  • Mrs Dodd, Garth Hill College
  • Great warm ups.

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.
Click here to enter your comments.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this
Good, achieved the results I required
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.0 out of 5 based on 296 votes.

Previous Day | This starter is for 14 October | Next Day



15%               55%               75%

60%               80%               25%

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.

Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items chosen and recommended by Transum Mathematics to get you started.


Have you read Craig's book yet?

Craig Barton must surely be the voice of Mathematics teachers in the UK. His wonderful podcasts interviewing the industry experts have culminated in this wonderful book. As Craig says: "I genuinely believe I have never taught mathematics better, and my students have never learned more. I just wish I had known all of this twelve years ago..." more...

"How I wish I'd taught Maths" is an extraordinary and important book. Part guide to research, part memoir, part survival handbook, it’s a wonderfully accessible guide to the latest research on teaching mathematics, presented in a disarmingly honest and readable way. I know of no other book that presents as much usable research evidence on the dos and don’ts of mathematics teaching in such a clear and practical way. No matter how long you have been doing it, if you teach mathematics—from primary school to university—this book is for you." Dylan Wiliam, Emeritus Professor of Educational Assessment, UCL.

The Craig Barton Book

Casio Classwiz Calculator

There is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app).

As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols!

This calculator has a high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...

Online Maths Shop

Laptops In Lessons

Teacher, do your students have access to computers?
Do they have iPads or Laptops in Lessons?

Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

Here a concise URL for a version of this page without the comments.

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

Student Activity


Curriculum Reference

See the National Curriculum page for links to related online activities and resources.


©1997-2020 WWW.TRANSUM.ORG