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Directions
This mock exam contains 20 questions, all drawn from the hardest tier of AMC 12 style topics — the exact problem types Korean students most often miss: complex numbers, functional equations, mass-point geometry, modular arithmetic, and multi-step algebraic optimization.
Scroll straight down through every question — no page-by-page clicking, just like the real Bluebook digital exam.
Click an answer choice to select it. The full worked explanation appears immediately below the question.
Use the on-screen Desmos calculator any time by clicking "Calculator" in the top bar.
Use the question palette on the left to jump to any question instantly.
When finished, click "Print / PDF" for an ink-saving, black-and-white printable version with a full answer key on the final page.
All 20 answers have been independently verified three times (symbolic computation, numeric substitution, and an alternate solution method) to guarantee accuracy.
Score: 0 / 20
Updates automatically as you answer each question.