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Introduction to scale factor. Multiplicative relationships.  2. 12. 24.  4. 12. 48. 12.  1. 12.  1. 12. 6. 2.  1. 12. 3. 4. Scale factors. 20.  5. 100.  1. 24. 6. 4. 3.2.  1. 3.2. 11.  8. 88.  1. 88. 11. 8. Scaling.  12.5. 1. 12.5.  1.

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slide2

Multiplicative relationships

 2

12

24

 4

12

48

12

 1

12

 1

12

6

2

 1

12

3

4

slide3

Scale factors

20

 5

100

 1

24

6

4

3.2

 1

3.2

11

 8

88

 1

88

11

8

scaling
Scaling

 12.5

1

12.5

 1

12.5

1

12.5

1

 3.2

3.2

 1 or  0.05

20

1

20

 1

11

1

11

unitary method
Unitary method

4

9

 1

4

1

 9

9

4

 9

4

number lines
Number lines

 9

4

 9

 1

4

4

1

9

unitary method7
Unitary method

15

7

 1

15

1

 7

7

15

 7

15

number lines8
Number lines

 7

15

 1

15

 7

1

15

7

inverse relationships
Inverse Relationships

3.6

1.2

 3

1.2

 3

3.6

 8

8

5

5

 8

5

8

5

 1

100

25

4

 1

100

25

4

 4

4

9

9

 4

9

4

9

kilometres and miles
Kilometres and miles

8

5

 1

8

1

 5

5

8

 5

8

 5

25 miles

40 km

8

32 km

 5

20 miles

8