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CBSE Class 8 Mathematics — Flashcards

CBSE Class 8 Mathematics flashcards, chapter by chapter — 970 flashcards across 14 chapters. Follows the CBSE syllabus.

How to Use Flashcards

  1. Read the question — answer it in your head before flipping.
  2. Check the answer — mark the cards you got wrong.
  3. Repeat the hard ones — review wrong cards more often, easy ones less.
  4. Little and often — short daily sessions beat long cramming sessions.

Chapter-Wise Flashcards — 14 Chapters

Q: टॉगलिंग पहेली के अंत में लॉकर को खुला रखने के लिए क्या किया जाता है?

A: एक लॉकर खुला रहता है यदि इसे विषम संख्या में टॉगल किया जाता है। यदि इसे सम संख्या में टॉगल किया जाता है, तो यह बंद हो जाता है।

Q: What makes a locker stay open at the end of the toggling puzzle?

A: A locker stays open if it is toggled an odd number of times. If it is toggled an even number of times, it ends up closed.

Q: Why does the number of toggles for a locker match the number of factors of that locker number?

A: A locker is toggled by every person whose number is a factor of the locker number. For example, locker 6 is toggled by persons 1, 2, 3, and 6 because 1, 2, 3, and 6 are factors of 6.

All 72 A Square and A Cube flashcards

Q: % प्रतीक का क्या अर्थ है?

A: इसे प्रतिशत के रूप में पढ़ा जाता है। प्रतिशत का अर्थ है सौ से या सौ में से। तो 25% का अर्थ है प्रत्येक 100 में से 25।

Q: What does the symbol % mean?

A: It is read as per cent. Per cent means by the hundred or out of hundred. So 25% means 25 out of every 100.

Q: What is the meaning of 50% of a quantity?

A: 50% means 50 out of 100. So 50% of a value is (50/100) × value = 1/2 of the value = 0.5 of the value.

All 84 Fractions in Disguise flashcards
3

Power Play

72 cards

Q: प्रत्येक मोड़ के बाद कागज़ की मोटाई का क्या होता है?

A: हर मोड़ के बाद मोटाई दोगुनी हो जाती है। यह गुणक वृद्धि है, जिसे घातीय वृद्धि भी कहा जाता है। अगर कागज़ 0.001 cm से शुरू होता है, तो 1 मोड़ के बाद यह 0.002 cm हो जाता है, 2 मोड़ के बाद 0.004 cm और 3 मो

Q: What happens to the thickness of a sheet of paper after each fold?

A: The thickness doubles after every fold. This is multiplicative growth, also called exponential growth. If the paper starts at 0.001 cm, then after 1 fold it becomes 0.002 cm, after 2 folds 0.004 cm, a

Q: Why is paper folding an example of exponential growth?

A: Because each fold multiplies the thickness by 2. The growth is not by a fixed amount; it keeps doubling. That is why it is multiplicative growth, not additive growth.

All 72 Power Play flashcards

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Frequently Asked Questions

Where can I find CBSE Class 8 Mathematics Flashcards?

This page has flashcards for 14 chapters of CBSE Class 8 Mathematics for the 2026-27 session. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Read the question side, answer it in your head, then check. Put the cards you got wrong back into the pile and review them again the next day. Short daily sessions work better than long ones.

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14 chapters

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