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Revision Notes

Playing with Numbers — Revision Notes

ICSE · Class 6 · Mathematics

Playing with Numbers revision notes for ICSE Class 6 Mathematics: 4 topics in quick points. Part of the ICSE Class 6 Mathematics syllabus.

50 questions30 flashcards2 formulas & key relations5 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?
Key topics in Playing with Numbers include Simplification Using Brackets and BODMAS, Even and Odd Numbers, Factors and Multiples, H.C.F. and L.C.M.. Study these first, then practise questions on each for Class 6 exams.
How should I revise Playing with Numbers for Class 6 exams?
Learn the core ideas first, then work through the 50 practice questions on Playing with Numbers. Revise 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 Playing with Numbers

All ICSE Class 6 Mathematics Revision Notes

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