Weekly Challenge


The puzzles this week are a form of cryptarithm. Cryptarithms use letters in place of digits to form a puzzle out of a standard arithmetical calculation. In this challenge, we’ll practice some of the techniques that should allow you to enjoy these puzzles. The beauty of colourithms is that they get children thinking about the techniques that we use for arithmetic rather than just following them.

Colourithm puzzle

Some of the related maths topics

  • Long arithmetic
  • Times tables
  • Algebra
  • Mental maths

To try this challenge:

  1. Download the resource file with templates and challenges
  2. Print out the file
  3. Get coloured pens or pencils
  4. Watch the video below

Download or share all of these challenges with this pdf and let us know how you got on with it by tweeting using #momentofmaths and start to see Every moment is a #momentofmaths.

If you would be interested in joining an online maths club session that explores this or other Maths Explorers’ challenges, our online programme are now live. There are a few places remaining. Find out more at https://online.roots2grow.org/

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