Master fractions, percentages, square roots, and trigonometry with printable worksheets designed for Japanese students. Each unit includes dozens of practice problems organized by difficulty, flashcard-style mental math drills, and one-page formula summary sheets you can print or reference.

Download everything instantly as PDFs. No subscriptions needed—buy the units you want, use them forever. Parents and students get immediate access to materials that match school curriculum pacing.

• Printable math worksheets (計算プリント) with answer keys for each topic
• Flashcard-style mental math practice sets (フラッシュ暗算) organized by level
• One-page formula summary sheets (公式まとめ) for quick reference
• Instant PDF downloads for all materials
• Print-friendly formatting optimized for paper or digital use