CM Magazine: The Little Math Puzzle Contest

CM March1, 1996. Vol II, Number 20

 The Little Math Puzzle Contest

The Little Math Puzzle Contest

Man seeks order and pattern in all things
Be ready to change your paradigm.

Puzzle #24

What is the next letter in this set?

B, C, D, E, G, P, T, ___

hint: you are to select from the remaining letters (U, V, W, X, Y, Z)

This puzzle comes from Bill Stuebing who is one parent of a class in Red Deer Alberta.

Send your response by 8:00 a.m., Friday, March 8 to:

Puzzle #22 was the following:

What is the next number in this pattern

16, 24, 36, 54, ___

The answer to Puzzle #22 is below:

The expected answer was 81

to get the next number you add half the current number
16 + 1/2 of 16 = 24 . . . 36 + 1/2 of 36 = 54 . . . 54 + 27 = 81

another solution is 86

explained by Sylvia Champion, Gr. 7A, Mennonite Brethren Collegiate Inst., Winnipeg, MB reasoning:

The second digit alternates between 4 and 6.
The first digit comes from adding the last two first digits together.

a third solution was 80

explained by Justin Cormier, Stephen McKim, Mike Davidson, Grade 8B Riverview Middle School - Riverview, New Brunswick. reasoning:

taking the difference between 16-24 as 8, 24-36 as 12, 36-54 as 18
I added the difference betwwen 8-12=4, 12-18=6, to the previous difference.
The next number I see is 18+8=26 added to 54 gives my solution of 80.

The Winners -- Solvers of Puzzle #20

The people who answered puzzle #22 with 81 were:

  1. Alex Ferreira Grade 5 St. Margaret's School - Sarnia, Ontario
  2. Brianne Kennedy, Kara Ciccarelli - Ms. Laudonio Gregory Hogan School - Sarnia, Canada
  3. Rudi Jaclyn and the rest of Mr. Davis' grade 5 class. Sheridan school - Oakville Ont. Canada
  4. Paige Aarhus, Breanna Jensen gr5 Corinne Saunders, Caitlin Klien, Stephanie Stol, Kelly Woods - gr 4 Joseph Welsh Elementary School - Red Deer, Alberta
  5. T. Burnie's Gr 7/8 class St Ann Catholic School - Toronto, Ontario
  6. Van Nguyen in O. Piruckyj's Gr 8 class D'Arcy McGee Catholic School - Toronto, Ontario
  7. Gabrielle Kern - Mr. J. Cowley (6th Grade) Sacred Heart Elementary School - Sarnia, Ontario
  8. Mrs. Christian's Grade 3's and Mr. Lockwood's 3/4's Stanley Public School - North York, Ontario, Canada.
  9. Phil Langford, Gr. 8 Mennonite Brethren Collegiate Inst. - Winnipeg, MB
  10. Terry Anderton, Grade 5 Piper Creek Elementary School - Red Deer AB
  11. Kaitlin Boone - Mrs. Seltzer's fourth grade class Indian Lakes Elementary School - Virginia Beach, VA
  12. Mrs. Dockrill's grade 2 class St. Peter Canisius School - Watford, Ontario.
  13. Paige Aarhus, gr5, Joseph Welsh Elementary School - Red Deer, Alberta
  14. wendy johnson

    The people who answered puzzle #22 with 86 were:

  15. Mrs. Jones' grade 6/7 class K. V. M. School - Burtts Corner,N.B.
  16. Chris Janz - Grade 8 Class General Vanier School - Winnipeg, Manitoba
  17. Jon Stevenson - Grade 7/8 St. Andrew School - Windsor, Ontario
  18. Ms. Hatfield's Grade 4 class St. Margaret's School - Sarnia, Ontario
  19. Leigh Perkins Keswick Valley Memorial School - Burtts Corner,N.B
  20. Christopher Reid Gr.4 Stanley Elem. School - Stanley , N.B.
  21. Mrs. Harris's grade 4/5 class St. Margaret's School - Sarnia, Ontario
  22. Tara O'Rourke, Clyde Dohey, Tony Coffey, Charlene Conway, Freddie Hardy - Level One Fatima Academy - St.Bride's, Newfoundland.
  23. Rena, Kayla, Lori, Jacinta et Stacey Madame Scaplen's grade 6 French Immersion class Sacred Heart Elementary - Marystown, Newfoundland

    The people who answered puzzle #22 with 80 were:

  24. Justin Cormier, Stephen McKim, Mike Davidson - Grade 8B Riverview Middle School - Riverview, New Brunswick.
  25. Bryan Penfound - Mrs Sutherland's Gr 6 Class St Philip's School - Petrolia Ont
  26. Class 7-c Park Junior High - Sydney,Nova Scotia
  27. Rosalie Evans, Josh Ulla - Mr.White's grade 5/6 class: Brooklyn District School - Newport, Hants Co. N.S.
  28. Nicky B. Ecole St. Avila - Wpg., MB
  29. Dave McFarland, Cassandra Cope, Alida Pokoradi - Grade 6 Mr. Czerneda C.H. Bray Public School - Ancaster, Ontario

Andrea Pollock and Alex Nazarov
Royal West Academy, Montreal West, Quebec.

Information about the Little Math Puzzle Contest.

Copyright © 1996 the Manitoba Library Association. Reproduction for personal use is permitted only if this copyright notice is maintained. Any other reproduction is prohibited without permission.

Published by
The Manitoba Library Association
ISSN 1201-9364