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Wiskunde

Desimale breuke

Opvoeders afdeling

Memorandum

11.1 a) 41c

b) 42

c) 44c

11.2 Rond af

11.3.1 a) Kyk na die 2de syfer ná komma (100stes)

Indien 5,6,7,8,9: 10des - syfer 1 meer

Indien 4,3,2,1,0: 10des - syfer dieselfde

Vervang alles ná 10des met nulle.

b) Kyk na 3de syfer ná komma

Indien 5,6,7,8,9: Honderdstes word 1 meer

Indien 4,3,2,1,0: Honderdstes bly dieselfde

Vervang alles ná 100stes met nulle.

c) Kyk na 4de syfer ná komma

Indien 5,6,7,8,9: Duisendstes word 1 meer

Indien 4,3,2,1,0: Duisendstes bly dieselfde

Vervang alles ná 1 000stes met nulle

11.4 a) 4,5

9,9

5,3

7,6

52,6

88

11.4 b)

6,41 8,60 7,26 9,49 5,03 6,29

11.4 c) (i) (ii)

(iii) (iv)

(v) (vi)

12.2 a) 11

b) R406

c) 6

d) 5

e) R327

f) 8

g) 9

h) 14

i) 448

j) 1 390

Leerders afdeling

Inhoud

Aktiwiteit: desimale breuke en afronding [lu 1.4.2, lu 1.7.1]

11.1 DESIMALE BREUKE EN AFRONDING

Werk saam met ’n maat. Kyk na die sketse. Wat kos een aartappel in elke geval?

11.2 Rond die volgende af tot die naaste heelgetal. Skryf die ooreenstemmende letter neer en kyk watter woord kruip hier weg!

A B D E F G I
8 39 6 7 16 236 9
K L M N 0 R S
17 237 15 38 35 4 150
T N
3 149

a) 8,047

b) 15,51

c) 3,7

d) 35,236

e) 149,089

f) 6,4

g) 35,09

h) 38,456

i) 15,912

j) 236,199

k) 235,89

Skryf jou antwoord hier neer: ...........................................................................

11.3.1 Werk in groepe van drie. Formuleer reëls / metodes vir die volgende:a) Afronding tot een syfer na die desimale teken:

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

b) Afronding tot twee syfers na die desimale teken:

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

c) Afronding tot drie syfers na die desimale teken:

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

…………………………………………………………………………………………..

11.3.2 Vergelyk julle antwoorde met die res van die klas s’n.

11.4 a) Voltooi die volgende vloeidiagram:

b) Kyk of jy die tabel korrek kan voltooi:

Getal 4,368 6,411 8,599 7,255 9,493 5,034 6,286
Afgerond tot twee desimale syfers 4,37 ............. ............. ............. ............. ............. .............

c) Rond af tot drie syfers na die desimale teken. Trek ’n sirkel om die korrekte antwoord:

12.1 Onthou jy nog?

1 000 ml = 1 liter

1 000 g = 1 kg

1 000 kg = 1 tonne

1 000 liters = 1 k

1 000 m = 1 km

100 c = R1,00

12.2 Vul die ontbrekende antwoorde in:

bv. 3 521 mm tot die naaste m = 4 m

a) 11 296 mm tot die naaste m = ......................... m

b) R406,38 tot die naaste rand = R.........................

c) 6 455 liter tot die naaste k = ......................... k

d) 4 823 kg tot die naaste ton = ......................... t

e) 32 687 c tot die naaste rand = R.........................

f) 8 388 g tot die naaste kg = ......................... kg

g) 8 630 m tot die naaste liter = ......................... liter

h) 14 277 m tot die naaste km = ......................... km

i) R4,4839 tot die naaste sent = ......................... c

j) R13,9021 tot die naaste sent = ......................... c

Assessering

Leeruitkomste 1: Die leerder is in staat om getalle en die verwantskappe daarvan te herken, te beskryf en voor te stel, en om tydens probleemoplossing bevoeg en met selfvertroue te tel, te skat, te bereken en te kontroleer.

Assesseringstandaard 1.4: Dit is duidelik wanneer die leerder herken en gebruik ekwivalente vorms van die bogenoemde rasionale getalle, insluitend:

1.4.2 desimale breuke;

Assesseringstandaard 1.7: Dit is duidelik wanneer die leerder skat en bereken deur geskikte bewerkings vir probleme wat die volgende behels, te kies en te gebruik:

afronding van getalle tot minstens een desimale .

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Wiskunde graad 7. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11076/1.2
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