Q&A - P3 Math

[mother777]

start to draw a model first.

1 unit = cost of 1 chicken,
2 units = cost of 1 duck (as duck's cost is twice of chicken)

total chicken = 2 units
total duck = 4 unts

6 units -->$24
1 unit = $ 4

duck --> 2 units
= 2 x $4

A duck will cost $8.

Hope this explanation helps

[mother777]

sorry no time to draw model..but really interesting question..will see if my DD1 can solve this tonight

[angel]

mother777:

start to draw a model first.

1 unit = cost of 1 chicken,
2 units = cost of 1 duck (as duck's cost is twice of chicken)

total chicken = 2 units
total duck = 4 unts

6 units -->$24
1 unit = $ 4

duck --> 2 units
= 2 x $4

A duck will cost $8.

Hope this explanation helps

Understood your explanation.
Thank you very much.
I was in doubt coz I do not agree with the model answer given.

[Steadyberry]

Hi


8 similar packets of sweets were shared equally among 37 pupils. When another similar packet of sweet was given out, each pupil received 7 more sweets. How many sweets were given out altogether? The answer given is 2331. Can someone pls explain, show workings and/or draw models on how to get 2331. Thanks in advance.

[mother777]

Ok here goes simple working, don’t know how to upload drawing


Total pupils–> 37
One extra packet shared–> 7 sweets for each pupil
Total sweets in 1 packet–> 37 x 7 = 259

Total packets –> 8+ 1 =9
Total sweets –> 9 x 259 = 2331

[Steadyberry]

Hi mother777


Thx for yr explanation. I get it now.

[GreenQ]

Sorry dear parents, need solution for the question below.


Draw diagrams / Guess and Check.

There are 8 goats and ducks altogether.
Some had 2 legs and some had 4 legs.
The animals have 20 legs in all.
How many goats are there?

Thanks.

P/s: The sch teacher said to get as less as possible for the number of goats.

[catddy2002]

GreenQ:

Sorry dear parents, need solution for the question below.


Draw diagrams / Guess and Check.

There are 8 goats and ducks altogether.
Some had 2 legs and some had 4 legs.
The animals have 20 legs in all.
How many goats are there?

Thanks.

P/s: The sch teacher said to get as less as possible for the number of goats.

Hi,

This is my format.
Not sure whether your child need to follow his/her teacher's format.

[catddy2002]

Sorry, missed out the picture!

Here you are.

http://i48.tinypic.com/351iomc.jpg\">

[GreenQ]

Great! Thanks for your prompt reply... :love: :thankyou: