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Number Play Class 8

CBSE

Patterns in numbers: odd and even (parity), sums of consecutive numbers and divisibility rules, used to solve number puzzles.

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Topic-wise short notes with solved examples.Open PDFDownload
Every formula and result of the chapter on one sheet.Open PDFDownload
Daily practice problems with an answer key.Open PDFDownload

What this chapter covers

  • Parity
  • Sums of consecutive numbers
  • Even numbers and multiples of 4
  • Properties of divisibility
  • Remainders
  • Divisibility by 2, 4, 5, 8 and 10
  • Divisibility by 9 and 3
  • Divisibility by 11
  • Divisibility by other numbers
  • Digital roots
  • Cryptarithms

The short notes explain each of these topics with solved examples, the formula bank lists every result on one sheet, and the DPP sheet gives practice questions with an answer key.

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