# 1.11 To count forward in intervals

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## Memorandum

1. 6; 12; 18; 24; 30; 36; 42; 48; 54; 60; 6; 72

7; 14; 21; 28; 35; 42; 49; 56; 63; 70; 7; 84

8; 16; 24; 32; 40; 48; 56; 64; 72; 80; 8; 96

9; 18; 27; 36; 45; 54; 63; 72; 81; 90; 9; 108

2. 72; 24; 48; 96; 108; 60

3. 1; 2; 5; 10

1; 3; 5; 15

1; 2; 4; 8; 16

1; 2; 3; 4; 6; 8; 12; 24

1; 2; 3; 5; 6; 10; 15; 30

4. 13; 2; 17; 11; 5; 23; 7; 19; 3; 29

5. 5.1

5.2 b)

6

9

4

2

1. 10 000

2. twenty six thousand four hundred and nine

3. 300

4. 5 000

5. 6; 12; 18; 24

6. 1; 2; 3; 4; 6; 12

7. true

true

TEST 1

1. 6 000 + 400 + 90 + 8

1. × 1 000) + (4 × 100) + (9 × 10) + (8 × 1)

2. a) 200

b) 70 000

3. a) 2 674

b) 16 537

1. 800

4. a) 7 420; 7 440

b) 16 775; 16 750

6. a)>

b)>

7. a) seventy six thousand and eight

b) 68 439

8. a) (i) 1 800

1. 34 700

b) (i) 5 000

1. 78 000

9 a) 6; 12; 18; 24

b) 1; 3; 17; 19

c) 1; 2; 3; 4; 6; 12

d) 2; 17; 19

e) 2; 4; 6; 12; 18; 24; 40

## To recognise, represent, describe and compare numbers, counting down and up in fixed intervals [lo 1.3]

1. LET US RACE!

The next activity will help you to improve your skill in adding or subtracting the same number every time. This way you also learn your multiplication tables that are necessary for correct multiplication and division!

Work with a friend. You need a stopwatch. You have to "climb" the following ladders by giving the correct answers. Then it is your friend's turn. The one who works fastest while doing it CORRECTLY is the winner. (Check with a pocket calculator!)

START AT THE TOP AND GO DOWN.

NOW START AT THE BOTTOM AND GO UP.

MULTIPLES

DO YOU STILL REMEMBER?

The answers that you got in the above exercise are MULTIPLES of the 6×, 7×, 8× and 9× tables.

A MULTIPLE is obtained when a given number (e.g. 6) is multiplied by another number or series of numbers.

E.g. the multiples of 5 are 5; 10; 15; 20; 25; etc.

2. Did you know? Multiples help you to add fractions correctly. It is therefore important that you know the multiples of your multiplication tables as soon as possible. Let us practise! Colour in the multiples of 12:

FACTORS

DID YOU KNOW?

Factors are the parts/components of a multiple. Factors of 10 are: 1; 10; 2 and 5.

If we are looking for numbers that can be divided into 12, for instance, we find 1 ; 2 ; 3 ; 4 ; 6 and 12.

These numbers are FACTORS of 12.

Suggestion: Think of "pairs":

1 × 12 = 12

2 × 6 = 12

3 × 4 = 12

3. It is important to have sufficient knowledge of factors, because this can help you to divide correctly and to simplify fractions. Try to complete the table below:

 Number Factors E.g. 8 1 ; 2 ; 4 ; 8 10 .................................................. 15 .................................................. 16 .................................................. 24 .................................................. 30 ..................................................

• Work with a friend.
• Answer the following questions and ask you friend to place a tick in the appropriate column:
 Not at all Reason-ably good Good Excellent I am able to recognise, describe and compare multiples (LO 1.3) I am able to recognise, describe and compare factors (LO 1.3) I am able to recognise, describe and compare prime numbers (LO 1.3)

are nano particles real
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
no can't
Lohitha
where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
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
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
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
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
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
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?
what is a peer
What is meant by 'nano scale'?
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 ?
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?
what king of growth are you checking .?
Renato
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