NCERT Class 4 Mathematics Math-Mela: Chapter 4 — Ones + 7 Tens
This chapter, 'Around Us,' from the NCERT Class 4 Mathematics textbook 'Math-Mela,' introduces basic number concepts through a real-life scenario of organizing a community lunch (langar). Students learn to represent numbers based on place value, such as '4 Ones + 7 Tens.' The chapter also involves interpreting and recording data, like the number of volunteers and donations. It uses visual aids like HTO blocks to represent quantities and introduces time-telling in relation to events. The focus is on understanding number composition and representation, reinforcing concepts of ones, tens, and hundreds, and applying them to practical situations like counting people and donations for the langar. This chapter helps students build a foundational understanding of numbers and their applications in everyday life, crucial for CBSE mathematics learning.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 4 |
| Subject | Mathematics |
| Book | Math-Mela |
| Chapter | Chapter 4 — Ones + 7 Tens |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 1 minute |
| Word count | 162 |
Learning outcomes
- Understand and represent numbers using place value (ones, tens, hundreds).
- Interpret and write numbers from given quantities and descriptions.
- Relate numbers to real-life situations like donations and attendance.
- Use HTO blocks to visualize number quantities.
- Record and interpret data presented in simple tables and time slots.
Vocabulary
| Word | Meaning |
|---|---|
| Langar | A community kitchen or lunch, often found in Sikh Gurdwaras. |
| Volunteer | A person who offers to do something without being paid. |
| Donations | Gifts or money given to a charity or organization. |
| Ones | The digit in the rightmost place value position. |
| Tens | The digit in the second place value position from the right. |
| Hundreds | The digit in the third place value position from the right. |
| HTO blocks | Blocks representing Hundreds, Tens, and Ones for visualizing numbers. |
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Practice questions
- Write the number for '4 Ones + 7 Tens'. Answer: 74
- If there are 52 people, how would you represent this using HTO blocks? Answer: 5 Tens and 2 Ones.
- What does 'Ten more than three hundred twelve' mean in numbers? Answer: 322
- How many people are expected if the donation quantity is '1000'? Answer: One thousand people.
Frequently asked questions
What is the main theme of NCERT Class 4 Mathematics Chapter 4?
The chapter 'Around Us' focuses on number representation, place value, and applying these concepts to real-life situations like organizing a community lunch.
How does the chapter explain place value?
It uses examples like '4 Ones + 7 Tens' to illustrate how numbers are formed by combining digits in different place value positions.
What are HTO blocks used for in this chapter?
HTO blocks are used to visually represent numbers based on their Hundreds, Tens, and Ones components, helping students understand quantities.
What kind of real-life examples are used in Chapter 4?
The chapter uses the example of organizing a community lunch (langar), including managing volunteers and donations, to make learning practical.
Can students learn to tell time from this chapter?
The chapter involves recording the number of people at different times, which indirectly touches upon understanding time slots related to an event.
Related resources
Important topics
Topics covered
NCERT Class 4 Mathematics — Math-Mela — Chapter 4 — Ones + 7 Tens. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.