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Mathematics

Probability

Educator section

Memorandum

1. 6 × 7 = 42

2. 7 × 9 = 63

3. 6 × 7 = 42

4. 9 × 5 = 45

5. (4 × 12) + 13 = 61

6. (6 × 8 ) + 8 = 56

7. 144 ÷ 12 ÷ 6 = 2

8. 2 001 – 17 = 1 984

9. 72 ÷ 8 = 9

10. 24 ÷ 3 = 8

11. 132 ÷ 11 = 12

12. 3 × 3 × 3 = 27

13. 96 ÷ 12 = 8

14. ( 30 ÷ 6) × 4 = 20

15. 13 × 4 × 8 × 0 = 0

TEST

1.

1.1 straight angle

1.2 obtuse angle

1.3 acute angle

2.

  • 40º
  • 150º

3.

3.1 No

3.2 Yes

4. 8 ; 8 ; 6

5. The ages of ten teachers are as follows:

23 ; 23 ; 29 ; 35 ; 41 ; 42 ; 42 ; 42 ; 47 , 53

5.1 42

5.2 41 / 42

5.3 37 ,7

6. Total number of times it took place

Total number of posibilities

7.

7.1 7 17 size 12{ { {7} over {"17"} } } {}

7.2 7 27 size 12{ { {7} over {"27"} } } {}

Leaner section

Content

Activity: to do mental arithmetic [lo 1.9]

Let's round off the year's work with our last mental arithmetic test. Test your skill by answering the following questions as quickly and correctly as possible:

1. 6 × 7 = _____________________

2. 7 × 9 =_____________________

3. 6 × _____________________ = 42

4. _____________________ × 5 = 45

5. (4 × 12) + 13 = _____________________

6. (6 × _____________________) + 8 = 56

7. _____________________ ÷ 12 ÷ 6 = 2

8. 2 001 – 17 = _____________________

9. 72 ÷ _____________________ = 9

10. _____________________ ÷ 3 = 8

11. 132 ÷ 11 = _____________________

12. 3 × 3 × 3 = _____________________

13. 96 ÷ _____________________ = 8

14. (_____________________ ÷ 6) × 4 = 20

15. 13 × 4 × 8 × _____________________ = 0

Complete: I had _____________________ correct!

TEST

1. What kind of angles are the following?

1.1 1.2
___________________________________ ______________________________
1.3
___________________________________ ______________________________

(3)

2. Measure the following angles with your protractor:

2.1 2.2
___________________________________ ______________________________

(2)

3. Do the following figures have rotational symmetry?

3.1 3.2
___________________________________ ______________________________

(2)

4. Complete: A cube has _______________ edges; ________________ angular

points and _________________________________ faces.

(3)

5. The ages of ten teachers are as follows:

35 ; 41 ; 23 ; 42 ; 42 ; 53 ; 47 ; 42 ; 23 , 29

5.1 Determine the mode:

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(1)

5.2 Determine the median:

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(2)

5.3 Determine the arithmetical average:

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(3)

6. What “formula” is used to determine possibility?

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(2)

7.

7.1 What is the probability that I will take a green ball out of a basket with 7 green, 6 red, and 4 yellow balls?

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(1)

7.2 What is the probability that I will take a yellow Smartie from a container with

5 green, 9 blue, 7 yellow, 2 pink and 4 red Smarties?

____________________________________________________________________

____________________________________________________________________

____________________________________________________________________

(1)

Assessment

Learning Outcome 1: The 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 Standard 1.9: We know this when the learner performs mental calculations.

Questions & Answers

what is demand of supply
music Reply
What is the meaning of supply of labour
Anthonia Reply
what is production?
Elizabeth Reply
Production is basically the creation of goods and services to satisfy human wants
Anthonia
under what condition will demand curve slope upward from left to right instead of normally sloping downward from left to right
Atama Reply
how i can calculate elasticity?
Tewekel Reply
What is real wages
Emmanuella Reply
what are the concept of cost
Tabitha Reply
what is the difference between want and choice
Grace Reply
Want is a desire to have something while choice is the ability to select or choose a perticular good or services you desire to have at a perticular point in time.
Dalton
substitutes and complements
Amman Reply
Substitute are goods that can replace another good but complements goods that can be combined together
nkanyiso
account for persistent increase in lnflation
niwahereza Reply
what is opportunity cost
Adebowale Reply
opportunity cost reffered to as alternative foregone when choice is made
niwahereza
government measures to control inflation?
Formu Reply
control populationk growth rate by using family planning to reduce faster increase of people than job creation
niwahereza
how do we calculate the firm's profit maximizing output in the short run given marginal cost ,average cost and average variable costs?
Nomuhle Reply
what is employment?
Ahmarh Reply
what is meant by broadening the tax base?
Fiona Reply
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Source:  OpenStax, Mathematics grade 6. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11030/1.1
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