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Beat the Calculator
View More From Kjartan Poskitt
Kjartan Poskitt proves what looks complicated can be simple.
  1. Beat the Calculator
    02:54
    Beat the Calculator
  2. 1089
    06:56
    1089
  3. Perfect pentagon
    04:14
    Perfect pentagon
  4. Fabulous flexagon
    02:05
    Fabulous flexagon
  5. Making Cubes
    05:26
    Making Cubes
  6. Prime number pizza
    04:24
    Prime number pizza
  7. Numerical masterclass
    03:20
    Numerical masterclass
  8. Q&A with Kjartan Poskitt
    05:19
    Q&A with Kjartan Poskitt
  9. Questions from schools
    05:40
    Questions from schools
  10. Authors Live with Holly Bourne
    34:04
    Authors Live with Holly Bourne
  11. Keep going!
    01:28
    Keep going!
  12. Authors Live with Ross Sayers
    31:15
    Authors Live with Ross Sayers
  13. Writing Tips with... Alastair Chisholm
    09:12
    Writing Tips with... Alastair Chisholm
  14. Emily's Books
    02:27
    Emily's Books
  15. How Catherine works
    00:59
    How Catherine works
  16. Book Introduction
    01:20
    Book Introduction
  17. Questions from schools
    07:40
    Questions from schools
  18. Konnie’s Favourite Character
    00:58
    Konnie’s Favourite Character
    19. Now playing
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