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Revision Notes

Playing with Numbers

ICSE · Class 6 · Mathematics

Quick revision notes for Playing with Numbers — ICSE Class 6 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

50 questions30 flashcards5 concepts

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Key Topics to Revise

1

1. Simplification Using Brackets and BODMAS

  • Always follow the BODMAS rule when simplifying expressions.
  • Brackets are solved in the order: Bar (—), Parentheses ( ), Curly { }, Square [ ].
  • Operations inside brackets are performed first.
2

2. Even and Odd Numbers

  • Even numbers are divisible by 2 (e.g., 2, 4, 6, 8...).
  • Odd numbers are not divisible by 2 (e.g., 1, 3, 5, 7...).
  • Sum of two even numbers is always even.
3

3. Factors and Multiples

  • A factor divides a number completely without remainder.
  • Every number is a factor of itself and 1 is a factor of every number.
  • Multiples are obtained by multiplying a number by natural numbers.
4

4. H.C.F. and L.C.M.

  • H.C.F. is the largest number that divides given numbers completely.
  • L.C.M. is the smallest number divisible by all given numbers.
  • Three methods to find H.C.F.: Common Factor, Prime Factor, Division.

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Full Notes

Key Concepts

BODMAS stands for BracketsA factor of a number dividesA prime number has exactly twoHThese are shortcuts to check if

Frequently Asked Questions

What are the important topics in Playing with Numbers for ICSE Class 6 Mathematics?
Playing with Numbers covers several key topics that are frequently asked in ICSE 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 Playing with Numbers — ICSE Class 6 Mathematics?
Understand the core concepts first, then work through the 50 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.

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All 22 chapters — ICSE Class 6 Mathematics Revision Notes

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