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Number patterns

Educator section



a) 96

b) 61

c) 53

d) 13

e) 12

f) 54

g) 82

h) 24

i) 80

j) 178

k) 2 700

l) R90

m) R60,80

n) 24 000

o) 90

p) R237




t) 34.25

  • increases with one (+1)
  • increases with 7 (+7)
  • increases with 8 (+8)

8.4 increases with 6 (+6)

  • 6; 27; 48
  • 24; 27; 30

The total is different

  • 27; 27

8.5.4 The total is the same

it is the same as above

Leaner section


Activity 1: number patterns (mental calculations) [lo 2.2]

  • Let us see how you cope with the following mental calculations. Try and complete the test in less than two minutes.

a) 12 × 8 = _________________

b) 23 + 38 = _________________

c) 48 + _________________ = 61

d) 132 ÷ _________________ = 11

e) 71 – 18 = _________________

f) _________________ ÷ 6 = 9

g) 63 + 19 = _________________

h) 39 + . _________________ = 63

i) 7 × _________________ = 560

j) Double 89: _________________

k) 90 × 30 = _________________

l) R4,50 × 20 = _________________

m) 400 × 60 = _________________

n) 2 700 ÷ . _________________ = 30

o) R6,08 × 10 = _________________

p) R2,37 × 100 = _________________

q) 3/8 of 64 = _________________

r) 4/5 of 45 = _________________

s) 6/7 of 42 = _________________

t) Halve 68,5: _________________

I have . ________________________________________. correct.

  • Colour in the face that shows how you feel:

8 . Look at the interesting pattern we can find on a calendar.

  • Work with a friend and discuss:

a) What pattern can you see in each row? (horizontal)




b) What pattern can be seen in each column? (vertical)



c) What patterns do you see in the diagonal from left to right?



d) What patterns do you see in the diagonal from right to left?



e) Look at the block marked with a dark line on the calendar. Now determine:

f) The sum of each row: ________________________________________________

g) The sum of each column: _____________________________________________

  • What do you notice? _______________________________________________________________

h) The sum of the diagonals: ____________________________________________

  • What do you notice? _______________________________________________________________

i) Test now for other "blocks" of numbers on the calendar. What is your conclusion?








Learning Outcome 2: The learner will be able to recognise, describe and represent patterns and relationships, as well as to solve problems using algebraic language and skills.

Assessment Standard 2.2: We know this when the learner describes, explains and justifies observed relationships or rules in own words.

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
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
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
How can I make nanorobot?
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
how can I make nanorobot?
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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Source:  OpenStax, Mathematics grade 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11075/1.1
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