Justundera Quid bought some letters to make a word and they cost exactly one penny less than one pound.
|£||A costs 1p
B costs 2p
C costs 3p
What do you think the word could have been?
This activity is suitable for students of mathematics all around the world. Use the button below to change the currency symbol used to make it more relevant to your students. You may wish to choose an unfamiliar currency to extend your students' experience.
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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.
Here is the URL which will take them to a student activity called 'Letter Sums'.
Now the prices of the letters are defined by prime numbers (A = 2, B = 3, C = 5 etc) and the price of a word is the product of the letters it contains.
For example the word BAD costs 3 × 2 × 7 = 42p.
What mathematical words might cost: