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Starter Questions

52 o. 150 o. 65 o. Starter Questions. Types of Numbers. Using Factors. Learning Intention. To explain what a factor is. To explain how to find Highest Common Factors. Rectangular arrangements. Finding factors. A factor is a whole number that divides exactly into a given number.

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Starter Questions

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  1. 52o 150o 65o Starter Questions

  2. Types of Numbers Using Factors Learning Intention • To explain what a factor is. • To explain how to find Highest Common Factors

  3. Rectangular arrangements

  4. Finding factors A factor is a whole number that divides exactly into a given number. Factors come in pairs. For example, what are the factors of 12? 1 and 12, 2 and 6, 3 and 4, So, in order, the factors of 12 are: 1, 2, 3, 4, 6, and 12.

  5. Finding factors A factor is a whole number that divides exactly into a given number. Factors come in pairs. For example, what are the factors of 8? 1 and 8, 2 and 4 So, in order, the factors of 8are: 1, 2, 4, and 8.

  6. Types of Numbers Highest Common Factor Highest Common Factor Largest Same Number We need to write out all factor pairs in order to find the Highest Common Factor.

  7. Types of Numbers Highest Common Factor Example : Find the HCF of 8 and 12. 1 12 8 1 8 12 2 4 2 6 4 3 HCF = 4

  8. Types of Numbers Highest Common Factor Example : Find the HCF of 18 and 24. 1 24 18 1 18 24 2 9 2 12 8 3 3 6 4 6 HCF = 6

  9. Types of Numbers Now try Exercise 2 Ch13 Page 163

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