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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Apple iPad Pro
The analytics show that more and more people are accessing Transum Mathematics via an iPad as it is so portable and responsive. The iPad has so many other uses in addition to solving Transum's puzzles and challenges and it would make an excellent gift for anyone.
The redesigned Retina display is as stunning to look at as it is to touch. It all comes with iOS, the world's most advanced mobile operating system. iPad Pro. Everything you want modern computing to be. more...
Before giving an iPad as a Christmas gift you could add a link to iPad Maths to the home screen.
Math with Bad Drawings
I had been tutoring the wonderful Betsy for five years. When the day came for our last ever session together before the end of her Year 13, I received this beautiful book as a gift of appreciation.
This a very readable book by Ben Orlin. I'm really enjoying the humour in the writing and the drawings are great.
Ben Orlin answers maths' three big questions: Why do I need to learn this? When am I ever going to use it? Why is it so hard? The answers come in various forms-cartoons, drawings, jokes, and the stories and insights of an empathetic teacher who believes that mathematics should belong to everyone.
A Compendium Of Mathematical Methods
How many different methods do you know to solve simultaneous equations? To multiply decimals? To find the nth term of a sequence?
A Compendium of Mathematical Methods brings together over one hundred different approaches from classrooms all over the world, giving curious mathematicians the opportunity to explore fascinating methods that they've never before encountered.
If you teach mathematics to any age group in any country, you are guaranteed to learn lots of new things from this delightful book. It will deepen your subject knowledge and enhance your teaching, whatever your existing level of expertise. It will inspire you to explore new approaches with your pupils and provide valuable guidance on explanations and misconceptions. more...
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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'?
The solutions to this and other Transum puzzles, exercises and activities are available here when you are signed in to your Transum subscription account. If you do not yet have an account and you are a teacher, tutor or parent you can apply for one here.
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.