Summary

This document explains divisibility rules for numbers 2, 3, 5, and 9, along with examples and exercises on applying these rules to determine if numbers are divisible by these numbers. It's suitable for secondary school mathematics lessons and covers basic number theory concepts.

Full Transcript

![](media/image2.png) ![](media/image4.png) ![](media/image6.png) ![](media/image8.png) **ƯỚC VÀ BỘI** ![](media/image10.png) ![](media/image12.png)

![](media/image2.png) ![](media/image4.png) ![](media/image6.png) ![](media/image8.png) **ƯỚC VÀ BỘI** ![](media/image10.png) ![](media/image12.png)

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