Word Sum

  F O U R
  F O U R
+ F O U R


Replace each letter with a different digit to make this word sum correct.

Can you make up a word sum or puzzle of your own?

A Mathematics Lesson Starter Of The Day

Topics: Starter | Arithmetic | Problem Solving | Puzzles

  • Joanne,
  • Could Anyone help me please, I have been reading all comments and found that many people are referring to extentions but I dont know where to find these. I am also wondering is there any answers to these, as I am always in a rush to get classes sorted and have no time to work these puzzles out!
  • Transum,
  • Dear Joanne, only some of the starters have suggested extension activities but most have answers. They can be found by scrolling down the page for those who have a Transum subscription. If you would like another word sum like this one you can find it at Word Differrence, the 13th August Starter of the Day or at Rock and Roll, the 13th December Starter of the Day.

    [Update: Now all Starters have extension activities. The links to them are lower down the page]
  • Mr Sim's 2j Class, Elgin Academy
  • We got 4659+4659+4659=13977.
  • Nicole, Cambodia
  • I think there's more than 1 answer. It can be:
    or 3659+3659+3659=10977
    or 8237+8237+8237=24711.
  • Mr Corben, 5C
  • 7659 works for us in SFBS, Korea
    5C rock.
  • Class 6A, London, England
  • Unfortunately 8237+8237+8237=24711 uses both T and O as 2.
    Most "of the time three" will end 977.
  • Joshua Saye, Castle Rock High School, Coalville
  • Lucy B from my Year 7C maths class got 6237+6237+6237=18711. A great effort in a short amount of time!
  • Senior Class, Mullagh National School
  • Our answer is 3659 * 3 which is 10,077.

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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  S E N D
+ M O R E


Replace each letter with a different digit to make this word sum correct.

This puzzle was first published by the great puzzle creator, Earnest Dudeney in 1924.

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Laptops In Lessons

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.

Laptops In Lessons

Here is the URL which will take them to today's student activity.


Student Activity



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Do you need help?

Here is a Step by step guide for solving word sums and some more word sums for you to try.


Extension Answers

  9 5 6 7
+ 1 0 8 5

1 0 6 5 2

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