1 / 19

Think of a number

Think of a number. Think of a number between 10-50. Double it. Add 6. Take 2. Halve the number. Take away the number you thought of. Write down the number you are left with……. I think the number is…. 2. That was clever wasn’t it?. Let’s try another one….

kamil
Download Presentation

Think of a number

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Think of a number

  2. Think of a number between 10-50 Double it

  3. Add 6

  4. Take 2

  5. Halve the number

  6. Take away the number you thought of

  7. Write down the number you are left with……. I think the number is…..

  8. 2

  9. That was clever wasn’t it? Let’s try another one…

  10. Think of an even number less than 50.

  11. Halve it

  12. Add 19

  13. Take away 9

  14. Double

  15. Take away the number you first thought of

  16. Write down the number you are left with……. I think the number is…..

  17. 20

  18. Plenary With a partner, discuss why the think a number puzzles always end up with the same number? Can you make up one of your own?

More Related