The mathematics section of the June mock exam for the 2027 College Scholastic Ability Test (Suneung) was assessed as having been set at a level similar to last year's Suneung.
"The analysis shows that overall it was set at a level similar to last year's Suneung," said Nam Chi-yeol, a teacher at Baekseok High School and a leading EBS math instructor, at a briefing on the math section's examination trends held at the Sejong Government Complex on the 4th. "We maintained the approach of basing questions on conceptual understanding while also securing discriminating power." He added, "Many questions were set that can evenly distinguish between mid- and upper-tier students. Some questions may feel tricky because they require comprehensive understanding and analytical skills, and it is difficult to say that math was easy overall. In that the existing examination approach was maintained, it is similar to last year."
In last year's actual Suneung, the highest standardized score in math was 139 points, the lowest on record, and an analysis emerged that discriminating power among the top tier was further strengthened as the number of students with perfect standardized scores declined. The standardized score shows how much an individual's raw score differs from the average. When an exam is difficult and the average is low, the highest standardized score rises, and when an exam is easy, it falls. EBS cited Question 22 (Mathematics I) and Question 21 (Mathematics II) of the common subjects, Question 28 of Probability and Statistics, Question 28 of Calculus, and Question 28 of Geometry as questions with relatively high discriminating power.
The EBS linkage rate was 50%, with a total of 11 questions linked—6 questions from Mathematics I and 5 questions from Mathematics II among the common subjects. Among the elective subjects of Probability and Statistics, Calculus, and Geometry, 4 questions each were set in linkage.
The college admissions industry assessed the exam as similar to or somewhat easier than last year's Suneung. Megastudy Education said, "The math difficulty is similar to last year's main Suneung," adding, "Question 30 of Calculus was a function type that has not been set recently, making it a somewhat difficult problem for students." Jongro Academy said, "Overall it is somewhat easier than last year's Suneung," adding, "Questions that can secure discriminating power among the upper tier were set similarly to last year." Kim Byung-jin, head of the Etoos Education Evaluation Research Institute, advised, "It was set similarly to or slightly easier than last year's Suneung. Because the scope of elective subjects is limited in the June mock exam, students should check their level of learning completion centered on the common subjects."
