Class 7 NCERT • Ganita Prakash Maths Portal
Ch 01: Large Numbers Around Us
Select a topic or study module below to explore the sense of a lakh and a crore, the Land of Tens, Indian vs International place value systems, rounding and estimation, multiplication shortcuts, and Figure It Out solutions.
Topic 01 • How Big Is a Lakh?
One Lakh Rice Varieties, Living 1 Lakh Days (274 Years) & Real-Life Large Numbers
Topic 02 • The Land of Tens
Special Button Calculators (+1000, +10,000, +1,00,000), Least Clicks & Expanded Form
Topic 03 • Indian vs American System
Lakhs & Crores (Laksha & Koti) vs Millions & Billions + 3-2-2 vs 3-3-3 Comma Rules
Topic 04 • Rounding & Estimation
Nearest Thousand, Lakh & Crore Neighbours, Approximating Sums & Real-World Data
Topic 05 • Multiplication Shortcuts
Fast Products Using ×5, ×25, ×125 Tricks & Finding How Many Digits a Product Has
Module 06 • Figure It Out & HOTS