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BUDGET FOR A GRADE 4 BRAAI

INCOME ACTUAL INCOME
Money earned
EXPENDITURE Cost in R
FINAL TOTAL

Now remember to take the amount spent away from the “Income”. Is there enough

money for paper plates and cups?

Test your progress

Let’s have another look at how you’re coping.

1. Round off to the nearest:

Ten Hundred Thousand
1 387
925
4 813
6 492
9 509

2. In each sum, estimate the approximate answer by rounding off the numbers to the nearest hundred. You do not need to calculate the exact answer:

  • 7 462 + 2 948
  • 9 476 - 4 508

3. Money

  • How many 1c pieces are there in R50?
  • How many 5c pieces are there in R50?

4. Calculate, writing down all your steps clearly:

  • 5 907 + 3 754
  • 6 098 - 3 274
  • 1 234  768  630  266

CALCULATORS AND WORD SUMS

You may use your calculator to find the answers in this section.

5. Read this sum carefully and answer the questions. Write down some proof to show how you reached each answer.

A professional gardener, Mr Gouws, prunes 765 rose-bushes in July. Mr Greg prunes 648 rose-bushes in the same month. In the first week of the next month Mr Gouws prunes another 165 bushes, while Mr Greg prunes another 261 bushes. Then in the second week of August Mr Greg prunes 87 more bushes while Mr Gouws prunes 184 bushes.

  • In July how many more bushes did Mr Gouws prune than Mr Greg ?
  • At the end of the first week in August was Mr Greg catching up to Mr Gouws? Give reasons to support your answer.
  • Altogether, who pruned the most rose-bushes?
  • How many bushes did both men prune altogether?

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:
1.6 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, and simple budgets).

Memorandum

ACTIVITY

1. MONEY MATTERS

  • 500 cent 1.2 5 000 cent 1.3 20 five-cent pieces

1.4 200 five-cent pieces1.5 2 000 five-cent pieces 1.6 10 ten-cent pieces 1.7 1 000 ten-cent pieces 1.8 2 fifty-cent pieces 1.9 20 fifty-cent pieces 1.10 40 fifty-cent pieces

2. SHOPPING FOR STATIONERY

2.1(a) R20 (b) R63 (c) R18 (d) R33 (e) R39 2.2 R173

3.1 It saves time; yes.

3.2

Notes AndCoins R78,76 AmountsR30,45 of changeR43,62 to beR21,94 R120,13 R0,55
R100 1
R50 1
R20 1 1 2 1 1
R10 1
R5 1
R2 1 1
R1 1 1 1
50c 1 1 1 1
20c 1 2 2
10c 1 1 1
5c 1 1 1 1 1

3.3 Remember, change is rounded off upwards , so if the change to be given is R78,76, the customer is given R78,80

4. AT SCHOOL

4.1 15

5. BUDGETS

5.1 GROUP WORK – AN INVESTIGATION - own answers

5.2 (a) own answer (b) own answer (c) own answer (d) own answer

Test your progress

1. Rounding off to the nearest:

10 100 1 000
1 387 1 390 1 400 1 000
925 930 900 1 000
4 813 4 810 4 800 5 000
6 492 6490 6 500 6 000
9 509 9 510 9 500 10 000

2.1 10 400 2.2 3 900

3.1 5 000 3.2 1 000

4.1 9 661 4.2 2 824 4.3 2 898

5with calculators – word sums

5.1 17 More 5.2 Yes; 910 – 909 5.3 Mr. Gouws 5.4 2 090

Questions & Answers

are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
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
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Read about ancient clocks like_ hour glass, water clock and sun dial for a quiz and hand on Activity in the class
Neha Reply

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Source:  OpenStax, Mathematics grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11101/1.1
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