Problem of the Week for September 20th to September 24th

Sep 19, 2026 | SW Calgary

Problem of the Week for September 20th to September 24th

Solve the problem of the week below for your grade level. During your @HOME session, be sure to tell your instructor or email the Math Centre your answer so your ballot can be deposited into your grade level entry box before closing time on Thursday. Students attending "in-Centre" sessions can deposit their ballots in their grade level entry box any time they are in the Math Centre during the week. On Thursday evening (8:00pm), a ballot will be drawn from each Problem of the Week Entry Box and the first “correct” solution drawn from each box will win a Fabulous $10 Gift Card. All other “correct” Mathlete solutions entered will receive “2” extra punches on their Reward Card at the start of their next session in the Math Learning Centre.

Give your brain a workout!!

Be sure to enter at the start of your next session at the Math Learning Centre.

Problem of the Week for Grades 3 and 4:  It takes 5 batteries to power 1 flashlight. It takes 4 batteries to power 1 radio. Which of the following requires more batteries: 3 flashlights and 2 radios or 4 flashlights and 1 radio?  How do you know?

Problem of the Week for Grades 5 and 6:  Brandon finds 4 kilograms and 520 grams of wood for a campfire. Emma finds 5 kilograms and 410 grams. Luis finds 9 kilograms and 570 grams. How much campfire do they have in total (in Kilograms and Grams)?

Problem of the Week for Grades 7 and 8:  An unroasted marshmallow has a volume 4.1π cubic centimetres. After Andrew roasts the marshmallow over a campfire, its volume is 150% its original volume. What is the post-roast volume of the marshmallow (to the nearest thousandth of a cubic centimetre).

Problem of the Week for Grades 9 and above:  A triangular prism-shaped tent has a rectangular bottom that is 18 decimetres wide and 24 decimetres long. The isosceles triangular sides have bases that are 18 decimetres wide and edges that are 15 decimetres in length. If all the walls of the tent are pulled perfectly flat, then what is the volume of the tent?

LAST WEEK WINNERS OF PROBLEM OF THE WEEK:

Grades 3 and 4:   A pretty good set of results this past week of attempting to successfully solve the problem.  Madelyn successfully solved the problem and was the first correct ballot to be drawn.  Well done Madelyn now come and choose a Fabulous $10 Gift Card of your choice.  Also solving the problem was Vincent, Aaron, Adam K, Zach, Elsa and Rami who will each receive "extra punches" on their Reward Cards.  Everyone try again this week!   Come on, give your brain a workout!

Grades 5 and 6:   A much better effort this past week working to solve the problem presented.  Alden successfully solved the problem and was the first correct ballot to be drawn.  Well done Alden now come and choose a Wonderful $10 Gift Card of your choice.  Also solving the problem was Vincent, Allie, Finley, Aiden and Sloan who will each receive "extra punches" on their Reward Cards.  Everyone try again this week!    Become a Mathnasium Mathlete!

Grades 7 and 8:  Oh No!!!  No Winner this past week as no correct solutions were submitted.  Everyone try again this week.   Mathnasium – Home of the Power Math Workout!

Grades 9 and above:   A WINNER - Ziang solved the problem and was the first correct ballot to be drawn and he wins an Awesome $10 Gift Card of his choice.  Great work Ziang.  Albert, Meher, Ananya, Scarlett and Declan also solved the problem and they will each receive "extra punches" on their Reward Cards.  Everyone try again this week to solve the problem. Show What You Can Do as a Mathlete!

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