Monday 21 March 2022 Monday 21 March 2022 Created by Mr. Lafferty Created by Mr. Lafferty @www.mathsrevision.com @www.mathsrevision.com Multiples and LCM Factors and HCF Types of Types of Numbers Numbers www.mathsrevision.com Prime numbers Prime Decomposition Squares, cubes and square roots 1
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Multiples and LCM
Factors and HCF
Types of Types of NumbersNumbers
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Prime numbers
Prime Decomposition
Squares, cubes and square roots
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Starter Starter QuestionsQuestions
Q2. Find the missing angle.
Q.3 Calculate
(a) - 9 - (72 8) (b) (-4) x (-13) (c) (-15) 3+4
1. Find all missing angles.
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45o
100o 92
o
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
1.1. To know the meaning of To know the meaning of the term prime the term prime decomposition.decomposition.
1. To explain what prime decomposition is and use it to decompose numbers into a product of prime numbers only. 2.2. Decompose numbers to a Decompose numbers to a
product of prime only.product of prime only.
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Types of NumbersTypes of NumbersPrime Decomposition
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Types of Types of NumbersNumbers
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A number is either Prime or Composite. (except for 0)If it is composite, like 12, it can always be expressed asa “product of primes”
Example : Express 12 as a “product of primes”
Prime Decomposition
Prime Factors are 2, 2, 3
126
3
1
22
3
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Types of Types of NumbersNumbers
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Prime Decomposition
Prime Factors are 2, 2, 3, 5, 11
660330
165
55
22
3
115
11
1
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
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Types of NumbersTypes of Numbers
Some words to learn
The Difference between two numbers is found by subtracting one number from the other
The Product is what you get when numbers are multiplied together
The Sum is what you get when numbers are added together
The Quotient is what you get when one number is divided by another.
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
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Types of NumbersTypes of Numbers
Examples
The Difference between 45 and 20 is
The Product of 2,5 and 6 is
The Sum of 3, 5 and 9 is
The Quotient when 30 is divided by 5 is
17
25
60
6
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Now try Exercise 9.1
Ch1 (page 15)
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Types of NumbersTypes of Numbers
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]
Starter Starter QuestionsQuestions
Q2. Find the missing angle.
Q.3 Calculate
(a) -16 -12- 6 (b) (-9) x (5) (c) (-22) x (-11) 2
1. Calculate the area of the following shape.
10 cm
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6 cm
114o
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Wednesday 19 April 2023Wednesday 19 April 2023 Created by Mr. Lafferty Created by Mr. Lafferty @[email protected]