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Chapter Summary

Number Play

CBSE · Class 6 · Mathematics

Summary of Number Play for CBSE Class 6 Mathematics. Key concepts, important points, and chapter overview.

37 questions64 flashcards5 concepts

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Overview

Numbers can convey information, reveal patterns, help with estimation, and support games and puzzles. This chapter connects number ideas with daily life and shows how pattern thinking, digit patterns, supercells, palindromes, Kaprekar's routine, Collatz sequences, estimation, and winning strategies

Key Concepts

Numbers can represent rules in

Numbers can represent rules in a game or a situation. In a line of children, a child says 0, 1, or 2 depending on how many taller neighbours are next

A cell is coloured if

A cell is coloured if the number in it is larger than its adjacent cells. In a single row, only left and right neighbours matter. In a multi-row table

The digit sum of a number

The digit sum of a number is found by adding all its digits. Different numbers can have the same digit sum, such as 68, 176, and 545.

There are nine 1

There are nine 1-digit numbers. Numbers can be grouped by how many digits they have, such as 2-digit, 3-digit, 4-digit, and 5-digit numbers.

Numbers that read the same from

Numbers that read the same from left to right and right to left are called palindromes or palindromic numbers. Examples include 121, 313, and 222.

Learning Objectives

  • Understand how numbers can show information in different situations.
  • Identify patterns in digit sums, repeated digits, palindromes, and number arrangements.
  • Find supercells by comparing numbers with their neighbours.
  • Explore reverse-and-add patterns and palindromic numbers.
  • Understand Kaprekar's routine and the Kaprekar constant 6174 for 4-digit numbers with at least two different digits.

Frequently Asked Questions

What are the important topics in Number Play for CBSE Class 6 Mathematics?
Number Play covers several key topics that are frequently asked in CBSE Class 6 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Number Play — CBSE Class 6 Mathematics?
Understand the core concepts first, then work through the 37 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Number Play

All 10 chapters — CBSE Class 6 Mathematics Chapter Summary

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