When written as a word or words, what is the smallest positive whole number containing the
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Idea for Teacher: Another way to present this idea is to challenge pupils to write down in one minute as many words as possible that do not contain the letter A . You can easily win this competition by writing down one, two, three, four etc which is much easier to do!
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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 related activity.
What is the largest number that has only one syllable?
When written as a word or words, what is the smallest positive whole number containing all of the vowels?
When written as a word or words, what is the only prime number that does not contain the letter 'e'?
When written as a word or words, what is the largest positive whole number that does not contain the letter 'o'?
When written as a word or words, what is the largest positive whole number that does not contain the letter 'i'?
When written as a word or words, what is the smallest positive whole number that contains the letter 'b'?
Which number is second if all the natural numbers written as words are arranged in alphabetical order?
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If you enjoyed this type of number puzzle you might like to look at the June 2016 Transum Newsletter which featured a similar challenge as the puzzle of the month.