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Problem of the Week

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The Problem of the Week is designed to provide students with an ongoing opportunity to solve mathematical problems. Each week, problems from various areas of mathematics will be posted here and e-mailed to teachers for use with their students from grades 3 and up.

Current Problems


Problem A
(Grade 3/4)
Week 30
3-D Fun
Problem B
(Grade 5/6)
Week 30
Bad Moon Rising
Problem C
(Grade 7/8)
Week 30
Colour by Numbers
Problem D
(Grade 9/10)
Week 30
Not as Easy as 1, 2, 3
Problem E
(Grade 11/12)
Week 30
Stand in a Circle

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Grade
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Problem A
(Grade 3/4)

Problem B
(Grade 5/6)

Problem C
(Grade 7/8)

Problem D
(Grade 9/10)

Problem E
(Grade 11/12)
E-mail

Information for Teachers

These problems may be used in a variety of different ways including:

  • posting the problems in a classroom,
  • discussing the problems with students, and
  • integrating the problems into the curriculum.

We know that teachers will use these problems in many creative ways!

Solutions to the problems will be sent out to teachers one week after the problems are e-mailed.

Problems & Solutions from 2021-2022


Problem A
(Grade 3/4)
Problem B
(Grade 5/6)
Problem C
(Grade 7/8)
Problem D
(Grade 9/10)
Problem E
(Grade 11/12)

Problem and Solution Archive

Each of the following links is to a booklet containing all the problems from particular years with solutions. The problems are organized into strands, grouping problems into various areas of the curriculum. A problem often appears in multiple strands.

Problem A (Grade 3/4)
Problem B (Grade 5/6)
Problem C (Grade 7/8)
Problem D (Grade 9/10)
Problem E (Grade 11/12)