Very Short Answer Questions · original practice
Very Short Answer Questions for Class 10 Mathematics Real Numbers. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
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Real numbers include all rationals and irrationals and fill the number line.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Fundamental Theorem of Arithmetic (statement).
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
HCF × LCM = product of two positive integers.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Terminating decimals: denominator 2^m 5^n after simplifying.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
√2, √3, √5 are irrational.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Euclid’s algorithm finds HCF.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Every composite number can be expressed as a product of primes, unique except for the order of factors.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
For two positive integers, HCF × LCM equals the product of the numbers.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
A rational p/q in lowest terms has a terminating decimal if q has only 2 and/or 5 as prime factors.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
If q has a prime factor other than 2 or 5, p/q has a non-terminating repeating decimal.
ExplanationA one-mark answer should use the textbook term and one clear fact — not a long paragraph.
MetaClass: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
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