## Q&A - P3 Math

BrownBelt
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### Re: Q&A - P3 Math

Hi mother777

Thx for yr explanation. I get it now.

GreenQ
BrownBelt
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Joined: Sat Feb 14,

### Re: Q&A - P3 Math

Sorry dear parents, need solution for the question below.

Draw diagrams / Guess and Check.

There are 8 goats and ducks altogether.
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
BlueBelt
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### Re: Q&A - P3 Math

GreenQ wrote:Sorry dear parents, need solution for the question below.

Draw diagrams / Guess and Check.

There are 8 goats and ducks altogether.
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.

catddy2002
BlueBelt
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### Re: Q&A - P3 Math

Sorry, missed out the picture!
Here you are.

GreenQ
BrownBelt
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Joined: Sat Feb 14,

### Re: Q&A - P3 Math

YellowBelt
Posts: 11
Joined: Sat Feb 23,

### Re: Q&A - P3 Math

quekcc wrote:
GreenQ wrote:Sorry dear parents, need solution for the question below.

Draw diagrams / Guess and Check.

There are 8 goats and ducks altogether.
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.
Draw diagram.

When we assume there are 8 goats, there will be 32 legs, 12 more than what is mentioned.

A goat has 2 more legs than a duck.

Since there are 12 extra legs, there must be 12 / 2 = 6 ducks.

8 - 6 = 2 goats.

mother777
BlackBelt
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### Re: Q&A - P3 Math

Ok here goes my method..

There are 8 goats and ducks altogether.
The animals have 20 legs in all.
How many goats are there?

Assume all are ducks..
each duck-->2 legs
If 8 ducks, total legs-->8 x 2 = 16
balance legs-->20-16 = 4
these extra legs are from goats.
each goat 2 extra leg.
so number of goat-->4/2 = 2

Goat-->2
duck-->8-2 = 6..

GreenQ
BrownBelt
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Joined: Sat Feb 14,

### Re: Q&A - P3 Math

Thanks and appreciate all for yours replies!

GreenQ
BrownBelt
Posts: 598
Joined: Sat Feb 14,

### Re: Q&A - P3 Math

mother777 wrote:Ok here goes my method..

There are 8 goats and ducks altogether.
The animals have 20 legs in all.
How many goats are there?

Assume all are ducks..
each duck-->2 legs
If 8 ducks, total legs-->8 x 2 = 16
balance legs-->20-16 = 4
these extra legs are from goats.
each goat 2 extra leg.
so number of goat-->4/2 = 2

Goat-->2
duck-->8-2 = 6..
Thanks mother777. My child's teacher used exactly the same method as yours!

mother777
BlackBelt
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### Re: Q&A - P3 Math

well that is good to know