This mock contains 25 hand-picked problems at the difficulty ceiling of AMC 8 — the same problem types that consistently trip up strong Korean students: unit traps, weighted averages, inclusion–exclusion, modular arithmetic, and geometry with a hidden step.

Work every problem before looking at the explanation. Select an answer choice to lock it in — the explanation will appear immediately below the question. This mirrors the on-screen exam experience, but is built as a single scrolling page so you can see the whole test at once.

The real AMC 8 does not allow a calculator. The Desmos calculator here is included as a study aid — use it to double-check arithmetic, not to skip the reasoning. For timed practice, keep it closed.

Use Print to generate an ink-efficient paper copy with a full answer key and explanations at the end.