Q&A - P3 Math

[Daddy]

Hi CeciliaHua,


The question is correct. I have checked already.

[jedamum]

CeciliaHua:

I think there's something not correct in the question. Since each boy ate 1 more chicken wing than girl, there will be 36 boys based on the sentence \"The boys ate 36 more chicken wings than girls.\". But the total number of children is only 30. Doesn't make sense.

CeciliaHua,
that is what i thought too when i first read the questions. but the above in bold can only happen when there are equal no. of boys and girls. it should make sense if say there are 1 girl who ate 3 wings and 2 boys ate 8 wings, there is an extra 5 wings already.
but not sure how to work this sum though...as well as a lot of other questions posted here!

[Daddy]

The answer is 18 boys. My daughter did not write down the correction completely. So that i also do not understand. I need someone for help…Thanks.

[tutor_your_child]

Daddy:

Hi,

\"30 children attended a party. Each girl ate 3 chickens wings and each boy ate 4 chicken wings. The boys ate 36 more chicken wings than girls. How many boys attended the party?\"

http://www.postimage.org/

[CeciliaHua]

Daddy:

The answer is 18 boys. My daughter did not write down the correction completely. So that i also do not understand. I need someone for help...Thanks.

With your answer, it makes sense.

Since each girl ate 3 wings and each boy ate 4 wings, to make the number equal, 4 girls equal to 3 boys equal to 12 wings

[g][g][g][g]=[b][b][b]

Boys ate 36 more means there are 9 more boys.

[b][b][b]
[b][b][b]
[b][b][b]

With these 9 boys, there are 21 children left. To balance the rest, note that 4 girls = 3 boys = 7 children altogether. That means 21 divide by 7 = 3.

That means
[g][g][g][g] and [b][b][b]
[g][g][g][g] and [b][b][b]
[g][g][g][g] and [b][b][b]

This means that there are 12 girls and 9 boys in the 21 children. Therefore, there are 9 + 9 = 18 boys.

Hope my working is correct.

[Dharma]

Daddy:

Hi,


I have another question to ask.
\"30 children attended a party. Each girl ate 3 chickens wings and each boy ate 4 chicken wings. The boys ate 36 more chicken wings than girls. How many boys attended the party?\"

Need help. P4 math so difficult !!!! :?

Thanksss alot

Hi daddy,

If there are 15 boys and 15 girls; the boys would have eaten 15 more chicken wings than the girls.

For every 1 more boy(1 less girl) ; the boys would have eaten an additional 7 more chicken wings than the girls.(ie. 22 more wings)

If boys had eaten 36 more chicken wings than the girls; then will be (36-16)/7 = 3 more boys.

Total no. of boys attended the party = 15 + 3 = 18

[Dharma]

Daddy:

Hi,


I have a math question need help?

\"Mrs Wong was short of $42 if she bought 5 similiar vases. So she bought 3 such vases and has $12 left. What was the cost of each vase?\"

Thankss.
Daddy :?

Hi daddy,

For every 2 less vases Mrs Wong buys, she will save ($42 + $12) = $54
So, for every 1 less vase she buys, she saves $54/2 = $27 (this is the cost of 1 vase)

[Daddy]

Thanks


Tutor_your_child, ceciliaHua, Radiantmum and Dharma.

I perfer the table method, easy to understand.

Thanks... alot ..

[Daddy]

HI,


My daughter go to P5 next year. I heard some parents said they need to study Foundation math, and it is important subject.
I do not know what is this. Is it difficult than normal math they currently study now?
Any recommended good book on foundation math? Thanks.

Daddy

[jedamum]

Daddy:

HI,


My daughter go to P5 next year. I heard some parents said they need to study Foundation math, and it is important subject.
I do not know what is this. Is it difficult than normal math they currently study now?
Any recommended good book on foundation math? Thanks.

Daddy

hi,
Foundation Math is actually supposed to be easier than Standard Math as they cater to weaker students. You can read more here...
http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=6659&highlight=subject+banding