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4.2 Prime numbers<10 ...........................................................................

4.3 The first four multiples of 12 ...........................................................................

4.4 The first four square numbers ...........................................................................

L e arning uni t 1 Assessment 1.1

Assessment of myself: by myself: Assessment by Teacher:
I can… 1 2 3 4 Critical Outcomes 1 2 3 4
give examples of different types of numbers; (Lo 1.1) Critical and creative thinking
define prime numbers; (Lo 1.1) Collaborating
define compound numbers; (Lo 1.1) Organising en managing
apply divisibility rules; (Lo 1.2.6) Processing of information
determine multiples of a number; (Lo 1.2.6) Communication
determine factors of a number; (Lo 1.2.6) Problem solving
determine prime numbers and prime factors; (Lo 1.2.6) Independence
determine even and odd numbers. (Lo 1.1)

good average not so good

Comments by the learner: My plan of action: My marks:
I am very satisfied with the standard of my work. < Date :
I am satisfied with the steady progress I have made. Out of:
I have worked hard, but my achievement is not satisfactory. Learner :
I did not give my best. >
Comments by parents: Comments by teacher:
Signature: Date : Signature: Date :

Assessment

Learning outcomes(LOs)
LO 1
Numbers, Operations and RelationshipsThe learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.
Assessment standards(ASs)
We know this when the learner :
1.1 describes and illustrates the historical and cultural development of numbers;
1.2 recognises, classifies and represents the following numbers in order to describe and compare them:1.2.3 numbers written in exponent form; including squares and cubes of natural numbers and their square roots and cube roots;1.2.6 multiples and factors;1.2.7 irrational numbers in the context of measurement (e.g. square and cube roots on non-perfect squares and cubes);

Memorandumactivity 1

2. {2, 3, 5, 7, . . . }

Two factors: 1 and itself

{4, 6, 8, 9, . . . }

More than 2 factors

  • Own choice: Ends on even numbers
  • Sum of all the numbers ÷ 3
  • Last numbers ÷ 4: e.g. 84 ÷ 4 = 21
  • Ends on 0 / 5
  • Divisible by 2 and 3
  • Last 3 numbers ÷ 8: e.g. 3 720 ÷ 8 = 90
  • Add all the numbers ÷ 9
  • Ends on 0
  • e.g. 2 6 8 2 + 8 = 10, 10 – 10 = 0

0 ÷ 11 = 0, 4 + 6 = 10

4. 2; 3; 4; 5; 6; 7; 8; 9; 10; 11

√ × × × × × × × × √

  • Count on, e.g. in 3’s: Number ÷ 3
  • Number that can divide into another number
  • Number with 2 factors: 1 and itself
  • Prime number that can divide into another number
  • Even: (Ends on even numbers) [divisible by 2]

Uneven: (Not divisible by 2)

6. F 48 = {1, 2, 3, 4, 6, 8, 12, 16, 24, 48}

7. {24, 30, 36, 42, 48, 54}

8. {19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73}

9. {21, 25, 27, 33, 35, 39, 45, 49}

10. {2, 5}

11. {10, 25, 50}

12. x ³ (number)³: 1, 8, 27, 64, 125, 216

13. x ² (number)²: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100

Homework assignment 1

1.1:, b ≠ 0 (Decimal: recurring or ends)

  • :Number with factors: 1 and itself
  • :Number with more than two factors
  • :Prime number that can divide onto a number
  • :4, 6
  • :1, 9, 15, 21, 25, 27, 33, 35
  • :6, 12, 18, 24, 30, 36
  • :1, 2, 3, 4, 6, 12
  • :2, 3
  • :1, 2, 3, 4, 6, 9, 12, 18, 36
  • :-, 0, 3, -9, 16
  • :-, 0, 3 -9, 16, 2
  • :
  • :1, 2, 3, 4
  • :2, 3, 5, 7
  • :12, 24, 36, 48
  • :1, 4, 9, 16

Questions & Answers

how do you get the 2/50
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Solve the mean of variance
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Step 1: Find the mean. To find the mean, add up all the scores, then divide them by the number of scores. ... Step 2: Find each score's deviation from the mean. ... Step 3: Square each deviation from the mean. ... Step 4: Find the sum of squares. ... Step 5: Divide the sum of squares by n – 1 or N.
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diveving the sum if all values
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let A1,A2 and A3 events be independent,show that (A1)^c, (A2)^c and (A3)^c are independent?
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data collected all over the world
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Imad Reply
The sample of 16 students is taken. The average age in the sample was 22 years with astandard deviation of 6 years. Construct a 95% confidence interval for the age of the population.
Aschalew Reply
Bhartdarshan' is an internet-based travel agency wherein customer can see videos of the cities they plant to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400 a. what is the probability of getting more than 12,000 hits? b. what is the probability of getting fewer than 9,000 hits?
Akshay Reply
Bhartdarshan'is an internet-based travel agency wherein customer can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400. a. What is the probability of getting more than 12,000 hits
Akshay
1
Bright
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Bright
a= 0.20233 b=0.3384
Sufiyan
a
Shaynaynay
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It depends on your business problem or in Machine Learning you could use ROC- AUC cruve to decide the threshold value
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Source:  OpenStax, Mathematics grade 8. OpenStax CNX. Sep 11, 2009 Download for free at http://cnx.org/content/col11034/1.1
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