Class 7 · Ganita Prakash
Unit 1 · Class 7Ganita Prakash
Large Numbers Around Us
Explore counting and place value up to crores and beyond.
Lessons
4 concepts
- 1Reading Large NumbersFor : 5 crore 8 lakh 72 thousand 3 hundred 1. Match commas to place-value groups.
- 2Standard FormWrite as . Convenient for astronomy, populations, distances.
- 3Estimation for Real LifePopulation, budgets — round to nearest thousand or lakh for quick sense-checks.
- 4Operations with Large NumbersLong addition/subtraction and multiplication follow the same rules — just be careful with place-value alignment.
Skills to practise