Competition Math Lab · Full-Length Practice

2020 AMC 12B
Interactive Mock Exam

Twenty-five problems, official difficulty order, one sitting. Answer inline as you scroll, pull a hint or a concept note when you're stuck, and get the explanation the instant you lock in a choice.

Problems

Choices Each

150

Max Score

MAA

Official Set

Choose a timer

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2020 AMC 12B · Interactive Practice Tool · Grade 9-12 Competition Math · Updated 2026-08-08

12B

MAA · American Mathematics Competitions

2020 AMC 12B — Mock Exam

75:00

0 / 25 answered

Answer Sheet

Answered Correct Incorrect Unanswered

Answered0/25

Correct so far0

All 25 problems are shown above — scroll to review, then submit whenever you're ready.

Score Report

2020 AMC 12B — Results

Scored using the official AMC formula: 6 points per correct answer, 1.5 points per problem left blank, 0 for an incorrect answer.

Estimated Score / 150

0/25

Correct Answers

—

Time Used

Result Breakdown

Correct

Incorrect

Blank

Missed Questions

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