Make a calculation using the numbers below to get as close as possible to the target above.
You can use any mathematical operation but each number only once.


A Mathematics Lesson Starter Of The Day

Topics: Starter | Arithmetic | Fun

  • Chris Southward, Limehouse School
  • Thursday, July 1, 2010
  • "Kris Faulder of Limehouse School came up with 19*8 + 5*17."
  • Amal, Islamia Girls Secondary School, London
  • Sunday, July 3, 2011
  • "This was really easy
    18(9 + 9)(18 - 9) = 2916."
  • Harrison, Cloudside
  • Thursday, July 12, 2012
  • "I got exactly the target with 2x6x8x10x12."
  • Transum,
  • Wednesday, July 2, 2014
  • "Just like yesterday's starter, this activity is based on a television programme popular in the UK. Sixty nine series have been broadcast since its debut on 2nd November 1982. With over 5,000 episodes, Countdown is one of the longest-running game shows in the world, along with the original French version, Des chiffres et des lettres, which has been running on French television continuously since 1965. [Source Wikipedia]."

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This starter has scored a mean of 3.8 out of 5 based on 440 votes.

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How many different sulutions do you think there are?

What strategies did you use?

Did you use your head, paper or a calculator?

Or did you use all three?

Could a computer help solve this problem?

Would you improve if you practised solving problems like this?

How could a group of students efficiently work together on a problem like his?

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.

The blue cards with numbers on can be dragged around the screen when considering different possibilities.

Laptops In Lessons

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Do they have Laptops in Lessons or iPads?

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

Laptops In Lessons

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