Two full mock-test experiences built to match the real Digital AP exam: identical question counts, identical section timing, identical Bluebook interface — plus instant explanations after every answer so you can self-study in English from start to finish.
Replicates the actual AP Precalculus Section I exactly: 40 multiple-choice questions split into Part A and Part B, each with its own hard countdown timer that force-submits when time expires — just like the real Bluebook app.
24 newly written questions, hand-picked for the exact calculations and conceptual traps Korean AP Precalculus students miss most: hole-vs-asymptote confusion, inverse-trig range restrictions, log rule slips, rose-curve petal counts, and more.
| Format | Identical to the real AP Precalculus Section I |
| Part A | 28 questions · 80:00 · calculator NOT permitted |
| Part B | 12 questions · 40:00 · graphing calculator required |
| Total | 40 questions · 2 hours |
| Scoring | Score and per-unit breakdown shown immediately after Part B |
| Timer behavior | Each part auto-submits and locks when its clock hits 0:00 |
Once you begin Part A, the timer cannot be paused. You may mark questions for review and jump between them freely within the same part. Good luck.
| Format | One continuous timed section |
| Questions | 24, all newly written trap questions |
| Time | 75:00, calculator allowed throughout |
| Scoring | Score and per-unit breakdown shown immediately at the end |
| Timer behavior | Auto-submits and locks at 0:00 |
Each question here targets a specific, well-documented error pattern. Read every explanation, even on questions you got right.