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Practice 13 [Pg 21]

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Practice 11 [Pg 18]

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HCF and LCM - using Index Notation Method

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Find the LCM of 9, 30 and 108.

Note

Express the numbers in index notation first, then find the LCM.

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Find the HCF of 90, 135 and 270.

Note

Express the numbers in index notation first, then find the HCF.

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Read up the worked examples in Textbook 1A

HCF (p16-p17)

LCM (p19-p21)

Pay attention to the method using INDEX NOTATION to find HCF and LCM

👇 ANSWER BOTH questions in the TEXTBOOK and post PHOTOs of your work under your INDEX number