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Mathematics

Number concept

Educator section

Memorandum

Test 2

1. 1.1 Sum

1.2 Substraction

2. 2.1 True

  • True

3. 2 382 + 12 018 = 14 400

4 214 + 45 116 = 49 330

= 63 730

4. 4.1 1 143 269

4.2 5 261 380 + 43 826

5.1 R13 + R54 + R8 + R130 = R205

5.2 R204,32

6. 7 637 261

7.1 8 035 933

7.2 8 621 704

Leaner section

Content

Activity: to solve problems in context [lo1.6.1]

** This is a task for your portfolio – do it without your pocket calculator! Be sure that you really understand what you have to do. Consider the assessment criteria before you start! Ask your educator for the paper that you will need:

1. Page through the local newspaper and find three advertisements that offer houses for sale. The prices should all be more than one million rand. Cut out the advertisements neatly and paste them on your sheet of paper. Calculate the combined price of the three houses.

2. Page through the newspaper again to find three examples of flats that are for sale. Also cut these out neatly and paste them on your paper. Calculate the combined price of the most expensive and the least expensive flats.

3. Now look for examples of three cars that are for sale. These must also be cut out and pasted neatly. Calculate the combined cost of the three cars.

4. Now select one house or flat and one car and calculate what you will have to pay for these items.

Criteria 1 2 3 4
Neatness Cut out untidily. Badly pasted. Cut out untidily.Pasted. Cut out fairly neatly. Pasted reasonably neatly. Very neatly cut out and well glued.
Completeness Hardly any of the instructions have been carried out. Only half of the instructions have been carried out. 1 or 2 instructions have not been carried out. All instructions have been completed.
Correctness of calculations All calculations are incorrect. Many mistakes occur. Few mistakes occur. All answers are correctly calculated.

Test

1. Fill in the missing words:

1.1 The answer of an addition sum is called the ___________________________

1.2 __________________________ is the inverse of addition. (2)

2. True / False:

2.1 27 more than 12 849 is 12 876.

2.2 869 213 is 9 100 more than 860 113. (2)

3. Calculate the answers to the following by grouping the numbers:

2 382 + 4 214 + 12 018 + 45 116

___________________ + ___________________ = ___________________

___________________ + ___________________ = ___________________

= ___________________ (5)

4. Fill in the missing numbers:

4.1 123 896 + 1 143 269 = ___________________ + 123 896

4.2 5 261 380 + (43 826 + 45 793) = (___________________ +

___________________) + 45 793 (3)

5. Nancy is shopping and packs the following items in her basket:

Mini tea cookies - R 12,69

Meat - R 54,29

Cheese - R 7,84

Frying pan - R129,50

5.1 Calculate how much money she needs by rounding off to the nearest rand.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(5)

5.2 Calculate the exact amount that she has to pay:

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(2)

6. Ebrahim had to calculate the following: 4 167 809 + 3 469 452

He forgot to complete the sum. Now do it on his behalf:

4 1 6 7 8 0 9

+ 3 4 6 9 4 5 2

7 _ 3 _ _ 6 _ (2)

7. Calculate the following by using the shortest method possible:

7.1 4 138 269 + 3 897 664

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________ (2)

7.2 5 963 287 + 2 658 417

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________ (2)

  • Complete by colouring in the appropriate block:

I am

COMPLETELY READY
NOT QUITE READY YET
NOT READY AT ALL

to advance to the next Learning Unit.

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 1.6: We know this when the learner solves problems in context including contexts that may be used to build awareness of other Learning Areas, as well as human rights, social, economic and environmental issues such as:

1.6.1: financial (including buying and selling, profit and loss, simple budgets, reading and interpreting accounts, and discount).

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
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Source:  OpenStax, Grade 6 mathematics support group. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11002/1.2
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