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Starter Questions. 4.56 – 0.32 + 1.20 45% of 30 Simplify Round to 1 decimal place 6.53, 2.15, 3.66. Ratio Calculations. Five people travel in one car to the cinema. ratio. people. :. car. :. 5. 1. 15. If there are 15 people how many cars do they need?.

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slide1

Starter Questions

  • 4.56 – 0.32 + 1.20
  • 45% of 30
  • Simplify
  • Round to 1 decimal place
  • 6.53, 2.15, 3.66
slide2

Ratio Calculations

Five people travel in one car to the cinema

ratio

people

:

car

:

5

1

15

If there are 15 people how many cars do they need?

slide3

Ratio Calculations

Five people travel in one car to the cinema

ratio

people

car

5

1

x 3

x 3

3

15

If there are 15 friends how many cars do they need?

3 cars

slide4

Ratio Calculations

Five people travel in one car to the cinema

ratio

people

car

5

1

x 3

x 3

3

15

There are 15 people and 3 cars.

How many objects are there in total?

15 +

3 =

18

slide5

Examples

1.

girls

boys

3.

apples

oranges

2

6

5

1

x2

x2

x4

x4

4

12

20

4

Total =

4+12

= 16

Total =

20+4

= 24

2.

cats

dogs

4.

shoes

boots

3

4

1

3

x3

x3

x8

x8

9

12

8

24

Total =

9+12

= 21

Total =

8+24

= 32

slide6

Question 1

cherries

apples

2

4

x 3

x 3

6

12

slide7

Question 2

pencils

rulers

4

3

x 2

x 2

8

6

slide8

Question 3

fish

lobsters

6

5

x 4

x 4

24

20

slide9

Question 4

footballs

baseballs

1

9

x 10

x 10

10

90

slide10

Question 5

soup

sandwich

7

2

x 5

x 5

35

10

slide11

Question 6

horses

riders

8

12

x 3

x 3

24

36

slide12

Question 7

Sunny days

Rainy Days

1

2

x 7

x 7

7

14

slide13

Question 8

toes

feet

5

1

x 6

x 6

30

6

slide14

Question 9

blonde

brunette

6

8

x 7

x 7

42

56

slide15

Question 10

boys

girls

9

4

x 4

x 4

36

16

slide16

Question 11

cups

saucers

10

2

x 20

x 20

200

40

slide17

Question 12

knives

forks

3

2

x 9

x 9

27

18

slide18

Question 13

pages

book

16

4

x 2

x 2

32

8

slide19

Question 14

people

car

7

1

x 4

x 4

28

4

slide20

Question 15

trousers

shirts

5

7

x 5

x 5

25

35

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