Class 10 Maths SA1 Key Paper 2026 – DCEB Mancherial Scoring Key & Solutions PDF

The District Common Examination Board (DCEB), Mancherial conducted the Summative Assessment – I (SA-1) for Class 10 (SSC) Mathematics (English Version, Paper Code: 48 - M(A)) for the academic year 2026–2027. To assist teachers with accurate and uniform spot valuation and allow students to evaluate their answers step-by-step, we have provided the official Principles of Evaluation and Step-by-Step Scoring Key.

Examination Overview
Academic Year: 2026–27
Class / Standard: Class X (SSC)
Subject: Mathematics (English Version)
Paper Code: 48 - M(A)
Exam: Summative Assessment – I (SA-1)
Authority: DCEB Mancherial (Telangana SCERT Syllabus)
Max. Marks & Time: 80 Marks | 3:00 Hours

Key Highlights of Principles of Valuation:

  • Valuation Flexibility: Full credit awarded for any mathematically valid alternative method, formula, or logical reasoning leading to the correct result.
  • Step-by-Step Marking: Detailed mark allocation for Section-I (12 Marks), Section-II (24 Marks), and Section-III (24 Marks).
  • Best-of-4 Evaluation Rule: Candidates answer any 4 out of 6 questions in Section III; if more are attempted, all are evaluated and the highest 4 scores are awarded.
  • Core Syllabus Coverage: Detailed solutions for terminating decimals ($25/144$), parallel lines, trigonometric complementary identities, Venn diagrams, grouped data median formula, and heights & distances.

Preview Key Paper PDF:

📢 Share with Teachers & Students: Help colleagues and secondary students prepare effectively by sharing this scoring key across your school complexes and teacher WhatsApp groups.

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