Zushi Kaisei Junior High School [Mathematics] 2027 Entrance Exam Prediction | Trends and Countermeasures Identified Through 3-Year Past Exam Analysis

This note is a compilation of trends and countermeasures for families aiming for the February 2027 entrance exam, based on our independent collection and analysis of Zushi Kaisei Junior High School's past three years (2024, 2025, and 2026) of mathematics entrance exam questions. The extraction of question patterns and the 2027 predictions are based on independent analysis, including AI analysis, and are not information officially released by the school. Please confirm final study decisions with your cram school instructor or by yourself as a parent.

📌 Purpose of this content

Do you have any of these concerns regarding your child's preparation for their desired school?

"I can get the past exam questions, but I don't know what to focus on studying."
"I want to know what to do in the final month to achieve a passing score."
"I want to grasp the question trends for each school using objective data."

This note is a summary of concrete and actionable countermeasures for parents and students in the final stages of exam preparation, based on data analysis of the past three years of past exam questions.

🎯 What this content aims to achieve

• Clarification of priorities: What to study and in what order within a limited time

• Grasping school-specific trends: Question patterns and countermeasures unique to this school

• Concrete action plans: A specific study plan that can be implemented starting tomorrow

Instead of vague encouragement to "do your best," we provide a clear guideline that "doing this will bring you closer to passing".

📊 Basis of analysis

The content of this note analyzes only the actual entrance exam questions from the past three years (2024, 2025, and 2026).

• ✅ Based only on past questions: Does not include subjective predictions or speculation

• ✅ No noise: Excludes comparisons with other schools and information with low relevance

• ✅ Data-driven: Shows patterns seen from three years of questions with concrete numbers and facts

🤖 About AI analysis

This content employs objective analysis by AI (Artificial Intelligence).

Reasons for using AI:

• Neutrality: No subjectivity from specific cram schools or instructors

• Elimination of arbitrariness: Avoiding human "assumptions" and "preconceptions"

• Comprehensiveness: Analyze all problems from the past 3 years without omission

However, disclaimer:

• AI analysis may contain errors

• Please adjust the final study plan according to your child's situation

• We cannot be held responsible for any results based on the content of this material

Now, let's look at the analysis results.

Basic Exam Structure

Over the past three years (2024, 2025, and 2026), the Zushi Kaisei Junior High School mathematics entrance exam has consistently maintained a structure of "50 minutes, 5 main problems, and 18 sub-problems." The stability of this format is important information for examinees, as it makes it easier to plan time allocation.

Difficulty Trends: The overall difficulty level has fluctuated within the "standard to advanced" range. While Problem 1 consists of easy basic calculation problems, the sub-problem set in Problem 2 covers standard-level problems from a wide range of fields, and from Problem 3 onwards, the difficulty tends to increase with applied problems and questions testing thinking skills in areas such as patterns, speed, geometry, and combinatorics. In particular, Problem 5 of the 2026 exam is rated as "advanced to difficult," and depending on the year, it may include problems that require a fairly deep understanding.

Characteristics of this school's mathematics entrance exam: The Zushi Kaisei mathematics entrance exam assumes basic calculation skills as a prerequisite, but is characterized by applied problems that test complex condition organization and logical thinking skills in frequently appearing fields such as patterns, speed (traveler's arithmetic, moving figures), geometry (similarity, volume, area changes of moving figures), and combinatorics. In addition, the answer sheet includes 1-2 problems each year that require writing out the reasoning or intermediate steps (though not explicitly stated for 2026, it is a trend), evaluating not just the ability to find the answer, but also the ability to express the thought process.

6 Question Patterns Identified from 3-Year Analysis

When carefully breaking down the data from the past 3 years (2024, 2025, and 2026), it becomes clear that the Zushi Kaisei Junior High School mathematics entrance exam has a distinct "pattern." I will organize and present them in the following 6 patterns.