How many Alphanumbetical numbers can you find? These are numbers which when written as words have all their letters in alphabetical order.

## A Mathematics Lesson Starter Of The Day

Topics: Starter | Puzzles | Vocabulary

• Mr Hamshaw-Hart, Beverley Grammar School
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• Alphanumbetical words.
First, effort.
• Class 1GS2, The Gordon Schools
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• We found 'forty'.
• Jenny Meckiffe, Herne Junior School
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• Thank you for this! I have used selective ones with my year four class and they have really enjoyed the challenge. We oarticularly liked Friday's one, finding the closest number sentence for 2008, great!
• Nick Peters, Uplands Junior School
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• Taking things to a cross curricular level, in French we could have deux, cinq or dix ?
• YR 8, Alcester High School
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• Also ein and dos as other languages.
• Mr Kavanagh's Fifth Class, Cork, Ireland
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• We found forty. In Irish we found the word dó which means two.
• 8n3, St George's Academy Sleaford
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• We also found 'acht'.
• Zak Taibi, Cavendish Road State High School
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• We found forty.
• Miss S, SSPP
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• We found 10. Thank you!
• Transum,
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• The number 8549176320 is special as it contains all of the digits in alphabetical order.

For more cool facts like that see the Maths Trivia page.
•
• Transum,
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• 206 is the smallest number that when written in words contains all five vowels exactly once:

TWO HUNDRED AND SIX
• Mr Duncan, Bundaberg
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• Our year 10 maths class in Bundaberg came up with "ju" which is 10 in Japanese.
• Year 6, Dorset
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• Harry came up with forty at Yarrells School in Dor:).

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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There is only one number:

FORTY

Can you find any other alphanumbetical mathematical words?

Here are some alphanumbetical mathematical words: add, foot, loss. Can you think of any more?

## Extension

Zero comes last if all the numbers are arranged alphabetically. What number would come first?

Here is the URL which will take them to a related student activity.

Transum.org/go/?to=anagram

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