AMC 8 · Journal
Competition Preparation
Guides, updates and answers about the AMC 8 — registration, the exam, preparation and results.
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AMC 8 Integer Constraints: Why an Algebraic Answer May Not Be Allowed
Discover why valid algebraic solutions might fail AMC 8 multiple-choice questions due to integer constraints. Learn to identify hidden domain restrictions with worked teaching illustrations.
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AMC 8 Venn Diagrams: Sorting Exactly One, At Least One and Neither
Learn how to solve AMC 8 Venn diagram problems involving ‘exactly one,’ ‘at least one,’ and ‘neither’ with two worked teaching illustrations, a common mistake contrast, and a practice decision framework.
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AMC 8 Fraction Word Problems: Choosing the Whole Before You Calculate
Struggling with AMC 8 fraction questions? Learn to identify the ‘whole’ before calculating. Includes worked examples, common pitfalls, and a diagnostic table for targeted practice.