Quick revision notes for Class 4 Maths Chapter 7 (The Cleanest Village). Ideal for a fast recap before exams.
Setting: Mawlynnong
- The chapter is set in Mawlynnong, Meghalaya, known as one of Asia’s cleanest villages.
Addition and Subtraction with Regrouping
- Regrouping (carrying/borrowing) is used when adding or subtracting larger numbers.
Estimation and Money
- The chapter uses cleanliness and waste-collection data, and money amounts, for real-life addition and subtraction practice.
One-Line Summary
Using Mawlynnong’s cleanliness story, this chapter builds addition and subtraction skills with regrouping through real data and money problems.
Class 4 Maths Chapter 7 – Solutions and Extra Questions
Need full answers or more practice? See the Class 4 Maths Chapter 7 Solutions and Class 4 Maths Chapter 7 Extra Questions.

