CEMC, University of Waterloo · Canada
Gauss Grade 8 practice
The gentle CEMC entry point: Part A is accessible, Part C is genuinely hard, and near-zero perfect scores are expected.
Contest facts
- Who can write:
- Grade 8
- Format:
- 25 multiple-choice questions: Part A (10), Part B (10), Part C (5)
- Time limit:
- 60 minutes
- Calculator:
- Calculating devices allowed, except devices with internet access, communication with other devices, previously stored information, a computer algebra system, or dynamic geometry software
- Dates:
- 10-21 May 2027 (window)
- Scoring:
- Correct answers earn their Part points, 2 per blank answer (up to 10 blanks), 0 per wrong answer, 150 points maximum
Topics: Curriculum common to all Canadian provinces, Logical thinking, Problem-solving. Official information: CEMC, University of Waterloo
About these questions
Every question on this page is original: written for this site in the style of the Gauss Grade 8 contest, never copied from a past paper. Each question passed an independent second solve before publication, and every answer comes with a full worked solution and the most common mistake.
Practice one question at a time, take the timed mock under the real contest clock, or print the set with its answer key. Progress is saved in your browser only; there is no account.
Practice engine
Question 1 of 45 · Part A · Algebra · 5 points · Calculating devices allowed, except devices with internet access, communication with other devices, previously stored information, a computer algebra system, or dynamic geometry software
Jaden thinks of a number. He multiplies it by 4, then adds 6, and gets 30. What number did Jaden think of?
Progress is saved only in this browser. There is no account and nothing is sent to us.
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