Original revision introduction and starter practice. Full learning texts are available through the publisher links below. This guide is not a CBSE-issued solution manual.
Revision introduction
Euclid’s division relation writes a=bq+r with 0≤r<b. The fundamental theorem of arithmetic gives a unique prime factorisation, apart from order. For positive integers a and b, HCF(a,b)×LCM(a,b)=a×b. For a quadratic ax²+bx+c, the sum of its zeros is −b/a and their product is c/a.
Curriculum navigation
Real Numbers
Polynomials
Pair of Linear Equations in Two Variables
Quadratic Equations
Arithmetic Progressions
Triangles
Coordinate Geometry
Introduction to Trigonometry
Some Applications of Trigonometry
Circles
Areas Related to Circles
Surface Areas and Volumes
Statistics
Probability
Consult the current official syllabus for examinable sections, project-only content, practicals, prescribed texts and exclusions. A unit index does not override those boundaries.
Original practice
What is the HCF of 36 and 60?
12
6
18
180
Worked answer
12
36=2²×3² and 60=2²×3×5; the common prime powers give 2²×3=12.
Full publisher materials and answer resources
CBSE 10 Mathematics Standard · syllabus · CBSE · 2026-27 The current official syllabus defines examinable content, internal assessment, practicals and prescribed books. Unit names in the app are a navigation index; consult this document for exclusions and assessment boundaries.
NCERT · Mathematics · NCERT · 2026-27 Official book selector with chapter PDFs and complete-book download. A textbook may contain material outside the assessed syllabus; follow the linked current syllabus.
NCERT Exemplar Problems and Answers · NCERT · Archive · map to 2026-27 Select Class 10 and the subject. The official portal includes answer sections. Older exemplars require checking each question against the current syllabus.
KVS student support material · Class 10 · Kendriya Vidyalaya Sangathan · 2026-27 Use the 2026–27 support-material folders linked by the school. These are KVS teaching/revision resources, not CBSE official marking schemes. Subject availability varies; older packs must be mapped to the current syllabus.
CBSE 2026–27 · Sample question paper · CBSE · 2026-27 Official document listed by CBSE for 2026–27. Open at the publisher; no third-party solutions are represented as official. Sample papers are practice models, not previous board examination papers.
CBSE 2026–27 · Official marking scheme / answer key · CBSE · 2026-27 Official document listed by CBSE for 2026–27. Open at the publisher; no third-party solutions are represented as official. Sample papers are practice models, not previous board examination papers.
DIKSHA · curriculum learning resources · Ministry of Education / DIKSHA · Current portal Choose CBSE/NCERT, Class 10, subject and medium. This is a searchable portal, not a promise of a specific playable lesson.