Class 6 Knowing Our Numbers Whole Numbers and Playing with Numbers Olympiad
Knowing Our Numbers, Whole Numbers and Playing with Numbers for Class 6 Olympiad Introduction Numbers are everywhere — in money, time, distance, and even in games. But Olympiad math is not just about reading numbers. It’s about understanding how numbers behave, how they connect, and how we can play with them smartly. If your child can “see” patterns in numbers, break them, and rebuild them, Olympiad questions become much easier. This chapter builds that exact power. Knowing Our Numbers Large numbers can look confusing, but they follow a simple system. Example 5,43,276 This is read as: 5 lakh 43 thousand 276 Visual Understanding Imagine numbers as groups: Ones → small dots Thousands → small boxes Lakhs → big boxes So instead of a long number, think of it as organized blocks. Example Write 706504 in Indian system Answer 7,06,504 Whole Numbers Whole numbers start from 0 and go on forever. 0, 1, 2, 3, 4, … Properties of whole numbers: Closure: a + b is always a wh...
