Hello,
you can get the complete chapter on the Number System on the Careers360 website. It provides detailed explanations, solved examples, and important formulas to help you understand the concepts clearly, You can also download the chapter notes in PDF format for easy revision.
Here is the link for Number System Notes:
https://school.careers360.com/ncert/ncert-class-9th-maths-chapter-1-number-system-notes
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