A Story of Numbers
CBSE · Class 8 · Mathematics
Flashcards for A Story of Numbers — CBSE Class 8 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.
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संख्या प्रणाली क्या है?
Answer
संख्या प्रणाली (number system) वस्तुओं, नामों या लिखित चिह्नों का एक मानक अनुक्रम होता है, जिसमें एक निश्चित क्रम होता है और जिसका उपयोग संख्याओं की गिनती और उन्हें निरूपित करने के लिए किया जाता है। उ…
What is a number system?
Answer
A number system is a standard sequence of objects, names, or written symbols with a fixed order, used for counting and representing numbers. Examples include stick counting, number names, and written …
What is a numeral?
Answer
A numeral is a symbol or group of symbols used in a written number system. For example, 0, 1, 5, 36, and 193 are numerals in the Hindu number system.
अंक क्या होता है?
Answer
अंक (numeral) किसी लिखित संख्या प्रणाली में प्रयुक्त एक चिह्न या चिह्नों का समूह होता है। उदाहरण के लिये ०, १, ५, ३६, १९३ हिन्दू संख्या प्रणाली के अंक हैं।…
गणना में एक-से-एक मानचित्रण क्या है?
Answer
एक-से-एक मानचित्रण का अर्थ है कि प्रत्येक वस्तु को ठीक एक छड़ी, नाम या प्रतीक के साथ मिलाया जाता है, और कोई भी दो वस्तुएँ एक ही वस्तु साझा नहीं करती हैं। यह एक संग्रह को सटीक रूप से गिनने में मदद करता…
What is one-to-one mapping in counting?
Answer
One-to-one mapping means each object is matched with exactly one stick, name, or symbol, and no two objects share the same one. This helps count a collection accurately.
Why are tally marks important in the history of numbers?
Answer
Tally marks are one of the oldest ways of representing numbers. A mark is made for each object, often on bones or cave walls. This method helped early humans count food, animals, and days.
संख्याओं के इतिहास में गिनती के निशान क्यों महत्वपूर्ण हैं?
Answer
संख्याओं को दर्शाने के सबसे पुराने तरीकों में से एक है टैली मार्क। प्रत्येक वस्तु के लिए एक निशान बनाया जाता है, अक्सर हड्डियों या गुफा की दीवारों पर। इस विधि ने शुरुआती मनुष्यों को भोजन, जानवरों और द…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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