The CLeanest Village Class 4 Maths Chapter 7 CBSE Notes 2025-26

Daisy and Lou from Shillong are excited about their school trip to Mawlynnong, Asia’s Cleanest Village located in Meghalaya. The school poster shares key details such as the trip date (December 30, 2025), the cost (₹500 per child), and the village’s main attractions: Jingmaham Living Root Bridge, Church of the Epiphany, Mawlynnong Waterfall, and the village’s eco-friendly lifestyle. Students are advised to bring a hat, water bottle, and lunch for the day as the trip will last from 7 am to 4 pm, with school buses provided for transport.

Shopping for the Trip Daisy and Lou help their mother prepare for the field trip by shopping for fruits, vegetables, biscuits, water bottles, and dry fruits. The price list for these items is provided; for example, beans cost ₹95 per kg and bananas cost ₹55 per kg. 

Understanding the price per kilogram helps them calculate how much money they need, such as when their mother spends ₹163 at the market. They consider several buying options, such as buying two kilograms of beans or combining different fruits and vegetables to reach the required amount.

Solving Real-Life Math Problems At Udaya Didi’s store, Daisy and Lou practice making change. They are presented with situations like: “If you buy goods for ₹435 and pay ₹500, what is the balance?” or “If the total cost is ₹185 and you pay ₹200, how much should you get back?” Such exercises help build confidence in subtraction and dealing with money in a practical setting. They also try to figure out which note combinations are best for buying items like 3 kg of bananas.

Puzzles and Mental Math The chapter includes puzzles, such as figuring out balances when friends buy two oranges each costing ₹21 and pay with different notes (₹50, ₹100, ₹200, ₹500). Another activity asks students to arrange numbers from 1 to 6 on a triangle so that the sum of each side matches targets like 9 or 10, which improves logical thinking and problem-solving.

Addition: Teachers and Children on the Trip To find out how many teachers and children are participating, Daisy and Lou add the numbers: 24 teachers from their school and 28 from another school, totaling 52 teachers. Similarly, 438 children from their own school and 476 from a neighborhood school add up to 914 children going on the trip. Students are encouraged to estimate before calculating to develop a sense of numbers.

Traditional Khasi Snack: Pusaw During the trip, Daisy and Lou eat pusaw, a tasty snack made from red rice common in the Khasi Hills. They pay ₹38 for a large piece and ₹16 for a small one, spending ₹54 in total. Such examples connect mathematics with everyday life, helping children relate addition with real purchases.

Piggy Bank Calculations Before the trip, Daisy and Lou combine their piggy bank savings of ₹185 with ₹125 given by their mother. They calculate the total money for the trip as ₹310, practicing addition and also learning the habit of saving and budgeting for an event.

Music School Word Sums The chapter relates to Kalakshitij, a music school, where students add tabla players and singers, both boys (78 + 532) and girls (95 + 346). When more girls join to learn tabla, they practice addition again. The exercises encourage using column method for neatness and accuracy in bigger sums.

Subtraction: Snacks and Visits On the bus journey, 83 children buy pusaw and 46 buy fruit plates, leading to 37 more children choosing pusaw. When 215 children visit the Living Roots Bridge first, out of 438, the remaining 223 wait for their turn. Estimating before solving helps students get comfortable with subtraction.

Keeping Track of Expenses After spending on food and gifts, Daisy and Lou have ₹179 left from their ₹310. They find they have spent ₹131 so far, practicing subtraction. Such story problems show how math is useful in managing money during journeys.

Comparing with Previous Years and Festivals Students learn to compare by finding how many more mangoes Ram Chacha collected this year (527) compared to last year (264), giving a difference of 263. When Ranganna makes 639 dolls and sells 531 during a festival, 108 dolls remain. This section sharpens skills in comparing quantities and doing two- or three-digit subtractions.

Library Book Pages and Reading By comparing the number of pages read from different books, students decide who read more and by how much. For instance, one child reads Panchatantra Tales (236 pages) while another reads three smaller books (Akbar Birbal, Karadi Tales, Blue Umbrella), requiring them to add and compare totals. This makes math meaningful in daily tasks such as reading.

Math with Train Journeys On a daily train between Delhi and Aligarh, students work out how many passengers are on board after different numbers get on and off at each stop. They answer questions such as how many passengers are left after certain people alight, comparing passenger counts, and totaling how many traveled in all. These exercises use both addition and subtraction in real settings.

Quick Calculations and Practice Questions Multiple exercises provide practice for adding and subtracting mentally (e.g., “675 + 5”, “204 – 10”). Children learn tips like subtracting in parts for faster answers (for example, doing “410 – 12” as two steps). There are also grids to find number pairs with the largest or smallest sum or difference. Students fill missing digits in sums and differences, reinforcing attention to detail.

Word Problems and Brain Teasers Challenging and creative problems boost thinking skills. An example is finding two numbers adding up to 856 or two numbers with a difference of 563, and then creating their own story problems from these. Throughout the chapter, relatable contexts and games keep learning lively and practical.

With its mix of real-life stories, practical money math, puzzles, and easy-to-follow sums, this chapter helps students practice and improve their addition and subtraction skills, making maths fun and relevant for everyday situations.

Class 4 Maths Chapter 7 Notes – My School Trip: Key Points for Quick Revision

These Class 4 Maths Chapter 7 notes cover all important concepts from "My School Trip" in an easy-to-read format. Students can quickly revise real-life addition and subtraction through stories, puzzles, and shopping examples. Key points help build strong calculation skills for both exams and daily life.

By reviewing these notes, learners can master how maths is applied in practical situations, such as budgeting, comparing quantities, and solving tricky word problems. Clear explanations and step-by-step methods make revision simple for all Class 4 students preparing for their exams.