NCERT Class 1 Mathematics Joyful-Mathematics (Hindi): Chapter 8 — संख्याओं के साथ खेल (21 से 99 तक की संख्याएँ)
This chapter, "संख्याओं के साथ खेल (21 से 99 तक की संख्याएँ)" (Playing with Numbers) from NCERT's Joyful Mathematics for Class 1, introduces basic number concepts through relatable scenarios. It begins with a problem about Simran packing oranges into boxes, each holding 10 oranges, prompting students to think about grouping and counting. The chapter visually presents numbers from 21 to 27, showing their Hindi names and numerical representation. It encourages children to engage with numbers in a playful manner, reinforcing their understanding of counting, number recognition, and basic arithmetic principles relevant to early CBSE mathematics.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 1 |
| Subject | Mathematics |
| Book | Joyful-Mathematics (Hindi) |
| Chapter | Chapter 8 — संख्याओं के साथ खेल (21 से 99 तक की संख्याएँ) |
| Language | Hindi |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 1 minute |
| Word count | 92 |
Learning outcomes
- Recognize and write numbers from 21 to 27.
- Understand the Hindi names for numbers 21 to 27.
- Relate numbers to real-life counting scenarios.
- Develop basic number sense through playful activities.
Vocabulary
| Word | Meaning |
|---|---|
| इक्कीस | Twenty-one |
| बाईस | Twenty-two |
| तेईस | Twenty-three |
| चौबीस | Twenty-four |
| पच्चीस | Twenty-five |
| छब्बीस | Twenty-six |
| सत्ताईस | Twenty-seven |
The complete chapter text is read in the official NCERT PDF viewer below (streamed from ncert.nic.in). This page provides NCERT Help study material — summary, vocabulary, practice questions, and FAQs — not a full reproduction of the textbook.
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Practice questions
- Write the Hindi name for the number 25. Answer: पच्चीस
- What number comes after 23? Answer: 24 (चौबीस)
- How many oranges are in 2 boxes if each box has 10 oranges? Answer: 20 oranges (This is an inference based on the intro, not directly answered in the provided text, but relevant to the theme).
Frequently asked questions
What is the chapter name in English?
The chapter name is 'Playing with Numbers'.
Which numbers are covered in this chapter?
The chapter covers numbers from 21 to 27.
What is the Hindi name for the number 22?
The Hindi name for 22 is बाईस.
What is the Hindi name for the number 27?
The Hindi name for 27 is सत्ताईस.
What is the main theme of the chapter?
The main theme is playing with numbers and recognizing them.
Related resources
Important topics
Topics covered
NCERT Class 1 Mathematics — Joyful-Mathematics (Hindi) — Chapter 8 — संख्याओं के साथ खेल (21 से 99 तक की संख्याएँ). Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.