t2-m-102-ratio-and-proportion-powerpoint ver 4...

Ratio: 3 girls to 4 boys (3:4)

Proportion: Girls 3 in 7Boys 4 in 7


6 girls

How many boys if there are:

8 boys


9 girls


12 boys


12 girls


16 boys

Work out the ratio from the number of sweets

Blue Sweets Pink Sweets

8 2

20 5

48 12

4 1

16 4

80 20

Ratio: 4 blue sweets to 1 pink sweet (4:1)

© Corbettmaths 2018

Primary Practice Questions

Proportion

Tips • Read each question carefully • Attempt every question. • Check your answers seem right. • Always show your workings

Recap

Remember • There are daily questions found at

www.corbettmathsprimary.com/5-a-day/

1. Emily buys 3 pencils for 90p.


How much does one pencil cost?

How much would six pencils cost?

How much would four pencils cost?

2. Kelly is making scones.Here is a list of ingredients to make 8 scones.

Kelly wants to make 16 scones.


How much butter should Kelly use?

g

How much milk should Kelly use?

ml

3. Jack and Harry are waiters in a restaurant.

They are both paid the same amount of money for each hour they work.

Jack worked 4 hours and is paid £24

Harry worked 5 hours

4. On a map, 1cm represents 4 miles.

The distance between two towns on the map is 8cm


How much money is Harry paid?

£

Work out the distance between the two towns.

miles

5. On a map, 1cm represents 3 kilometres.

The distance between two towns is 12 kilometres

6. Rebecca is making Chilli Con Carne.Here is a list of ingredients to serve 6 people.

Rebecca wants to make enough Chilli Con Carne to serve 2 people


On the map, what is the distance between the two towns?

cm

How many grams of tomatoes does Rebecca need?

g

7. Ella takes part in an archery lesson

For every 4 arrows fired, only 3 hit the target.Altogether Ella hit the target 24 times.

8. On a map, 1cm represents 20 miles.

The distance between two towns is 130 miles.


How many arrows did Ella fire?

On the map, what is the distance between the two towns?

cm

9. Oscar is making fish pie.Here is a list of ingredients for 5 people.

Oscar wants to make enough fish pie for 2 people.


How much haddock should Oscar use?

g

10. A boat is 12 metres long and 8 metres tall.

Victoria makes a scale model of the boat.

Her model is 20 centimetres tall


How long is her model?

cm

11. Freya is making shortbread biscuits.

Freya has only 100g of butter.


How much caster sugar should Freya use?

g

13. For every seven 50p coins, Alan has six 20p coins.

Alan has £18 in 20p coins.


How much money does Alan have altogether?

£

�AGEB7H6<A:�%4G<B

�

�

�

�

��

��

��

��

�

��

� �

��


';8�9<EFG�BA8�<F�7BA8�9BE�LBH��


�';8�9<EFG�BA8�<F�7BA8�9BE�LBH�

4� ~ � � � � � � � � ~} � ~�

5� ~ � � � � �

6� � � � ~}

7� � � � ~�

8� � ~~

9� � �

��AFJ8EF

';8�9<EFG�BA8�<F�7BA8�9BE�LBH��

��

��

��

�';8�9<EFG�BA8�<F�7BA8�9BE�LBH�

4� ~ � � � � � � � � ~} � ~�

5� ~ � � � � � ��

6� � � � ~} ��

7� � � � ~� ��

8� � ~~ ��

9� � � ��

Ratio and ProportionWrite the correct answer:

1. Beefmustbecookedfor30minutesforevery1kg.Howlongwouldittaketo cook: 2kgs? 4kgs? 6kgs? 8kgs?

2. Tomake1litreofjam,Iuse100strawberries. HowmanystrawberriesdoIneedtomake:

2litres? 3.5litres?

3. Ineedtocollect30stickers.Eachbagofcrispscontains3stickers. HowmanybagswillIneedtobuy?

4. Themotherbearisfed4fishforevery2fishthathercubisfed.Howmanyfishwouldthecubgetifthemotherisfed:

10fish? 20fish?

5. Thereare10boysforevery30girlsatthedisco. Howmanyboysarethereifthereare: 60girls? 90girls?

Ratio and ProportionWrite the correct answer:

1. Beefmustbecookedfor40minutesforevery1kg.Howlongwouldittaketo cook: 2kgs? 4kgs? 6kgs? 8kgs?

2. Tomake½litreofjam,Iuse50strawberries. HowmanystrawberriesdoIneedtomake:

2litres? 3litres?

3. Ineedtocollect80stickers.Eachbagofcrispscontains4stickers. HowmanybagswillIneedtobuy?

4. Themotherbearisfed5fishforevery2fishthathercubisfed.Howmanyfishwouldthecubgetifthemotherisfed:

10fish? 20fish?

5. Thereare6boysforevery9girlsatthedisco. Howmanyboysarethereifthereare: 27girls? 72girls?

Ratio and Proportion AnswersWrite the correct answer:

1. Beefmustbecookedfor30minutesforevery1kg.Howlongwouldittake to cook: 2kgs?60 minutes/1 hour 4kgs?120 minutes/2 hours 6kgs?180minutes/3 hours 8kgs?240 minutes/4 hours

2. Tomake1litreofjam,Iuse100strawberries. HowmanystrawberriesdoIneedtomake: 2litres?200 strawberries3.5litres?350 strawberries

3. Ineedtocollect30stickers.Eachbagofcrispscontains3stickers. HowmanybagswillIneedtobuy? 10 bags

4. Themotherbearisfed4fishforevery2fishthathercubisfed.Howmanyfishwouldthecubgetifthemotherisfed: 10fish?5 fish20fish?10 fish

5. Thereare10boysforevery30girlsatthedisco. Howmanyboysarethereifthereare: 60girls?20 boys90girls?30 boys

Ratio and Proportion AnswersWrite the correct answer:

1. Beefmustbecookedfor40minutesforevery1kg.Howlongwouldittaketo cook: 2kgs?80 minutes/1 hour 20minutes 4kgs?160 minutes/2 hours 40 minutes 6kgs?240 minutes/4 hours 8kgs?320 minutes/5 hours 20 minutes

2. Tomake1/2litreofjam,Iuse50strawberries. HowmanystrawberriesdoIneedtomake: 2litres?200 strawberries3litres?300 strawberries

3. Ineedtocollect80stickers.Eachbagofcrispscontains4stickers. HowmanybagswillIneedtobuy? 20 bags

4. Themotherbearisfed5fishforevery2fishthathercubisfed. Howmanyfishwouldthecubgetifthemotherisfed:

10fish? 4 fish20fish?8 fish

5. Thereare6boysforevery9girlsatthedisco. Howmanyboysarethereifthereare:

27girls?18 boys72girls?48 boys

t2-m-102-ratio-and-proportion-powerpoint ver 4...

Documents