Halve It

Start with 100.

Halve it to get 50

Halve it to get 25

Continue as far as possible.

No Calculators

[Decimal fractions are allowed]

You have

A Mathematics Lesson Starter Of The Day


Topics: Starter | Arithmetic

  • Transum,
  • A challenge for the more able who volunteer... two students stand at the front of the class with their back to the screen (which is showing the answers below and which the rest of the class can see). The first volunteer says 100. The second halves that and says the answer. The first halves the second's number and so on. The winner is the one who can last the longest without making a mistake.

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This starter has scored a mean of 3.3 out of 5 based on 140 votes.

Previous Day | This starter is for 9 July | Next Day



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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).

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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 division quiz.


Student Activity



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