Christmas Bells

A Festive Maths Starter of The Day

Christmas Bells

The first bell rings every 6 minutes,

The second bell rings every 7 minutes,

The third bell rings every hour.

If all the bells ring together at noon, at what time will they next all ring together?

Christmas Lights

Here is a simulation of the ringing bells using seconds rather than minutes.


Bell Bell Bell

Topics: Starter | LCM | Number | Xmas

You can find many more ChristMaths activities at:


  • Mr McLaughlin And Primary 5, St Bernadette's Primary School, Motherwell
  • We managed to work it out. We really enjoyed the puzzle as it allowed us to work on our time skills and gave us good practise at using calculators.
  • Enid, Bendigo Violet Street Primary
  • This was interesting but relatively simple to work out! A good challenge for those who like a puzzle.

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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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 fun student activity.

Student Activity

Here is the URL which will take them to a more traditional exercise on finding the lowest common multiple and highest common factor.

Student Activity


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