[HW] Workbook Chap 1 Review Exercise 1 (p15-p17) - 2 Questions of your choice

This is an exercise to consolidate what you learnt in this chapter (to-date).

Pace yourself to do these questions in the workbook.
It may take up to 2 hours if you were to complete the entire exercise.

Advice: Review and revise what you learnt in this topic (go through the notes) and blog posts. 

As a contributing member of the class, you will submit answers to 2 questions (your choice) to the padlet before next MONDAY (27 Jan). With this, we can learn from each other how we approach certain questions and present our answers. You may also ask questions or provide feedback to your peers. (remember to observe 4Rs here).

Feedback will be provided to you after the public holidays.

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[Summarising] Techniques to find HCF, LCM

These 2 clips summarises how we can find HCF and LCM of 2 or more numbers

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Clip 1: Observe what are the factors 'circled' in each case

When we look for Highest common factor, technically, we are looking for the 'lowest' power.
For the Lowest common multiple, technically, we multiply the prime factors with the highest power.


Clip 2: Some of us learnt to find the HCF and LCM using the division method.
The clip attempts to show how these 2 methods (i.e. Long Division method and Index Notation Method) are related to each other - the same thinking behind, though the representation looks different.

Quick Check: Lowest Common Multiple

Attempt the task in your Maths Notebook.
It should take less than 5 minutes.

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[HW] HCF and LCM - What's the deciding factor?

The task will take approximately 10 minutes to complete.
To be completed by 20 January 2020 Monday (5pm)

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