<![CDATA[Q&amp;A - P5 Math]]>Moderator's Note: Please use this thread to ask for help on specific questions. Please refrain from out of topic chatter in this thread to make it easier for the community to find the answers they need.


Pls help, thanks


http://i937.photobucket.com/albums/ad214/suz855/areaoftriangle-1.gif\">

:?

]]>https://forum.kiasuparents.com/topic/25129/q-amp-a-p5-mathRSS for NodeFri, 01 May 2026 02:50:15 GMTMon, 11 Oct 2010 03:45:23 GMT60<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 21 Sep 2016 14:06:16 GMT]]>Moderator's Note: Dear all, we have decided to lock this thread as we would like to encourage the use of https://www.kiasuparents.com/kiasu/askq/ for the posting and answering of academic questions. By using https://www.kiasuparents.com/kiasu/askq/, each question can be given very specific treatment and it makes it much easier for readers to track and follow discussions which enhances learning and understanding. At the same time, members who answer questions will be duly rewarded with KiasuPoints$ as a small token of appreciation, simply by users who liked their answers, or by the person who asked the question accepting the answer. Thank you, and see you in https://www.kiasuparents.com/kiasu/askq/!

]]>https://forum.kiasuparents.com/post/1720212https://forum.kiasuparents.com/post/1720212Wed, 21 Sep 2016 14:06:16 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 21 Sep 2016 09:05:37 GMT]]>Moderator's note: Question moved to https://www.kiasuparents.com/kiasu/question/can-help-plzzz-tia/#post-17813. Please use https://www.kiasuparents.com/kiasu/askq/ from now onwards to ask your academic questions. You will get much better and quicker response there, and it will be easier for you to track answers to your questions. Thank you.

]]>https://forum.kiasuparents.com/post/1720155https://forum.kiasuparents.com/post/1720155Wed, 21 Sep 2016 09:05:37 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 21 Sep 2016 04:37:29 GMT]]>Yes, can use algebra.

[quote]Can anyone cfm whether can use algebra? My kid teacher say cannot but like macaron I kind of agree that algebra is more full proof for pale and reduce assumptions and time wasted. Any thoughts on this? [/quote]

]]>https://forum.kiasuparents.com/post/1720099https://forum.kiasuparents.com/post/1720099Wed, 21 Sep 2016 04:37:29 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 21 Sep 2016 01:10:39 GMT]]>

macaron12:
Algebra. heard from a mom that her child was taught in school by a relief teacher. She used it in Psle & passed with flying colors.

Can anyone cfm whether can use algebra? My kid teacher say cannot but like macaron I kind of agree that algebra is more full proof for pale and reduce assumptions and time wasted. Any thoughts on this?

]]>https://forum.kiasuparents.com/post/1720033https://forum.kiasuparents.com/post/1720033Wed, 21 Sep 2016 01:10:39 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 19 Sep 2016 09:48:26 GMT]]>Hi mumof8,


PLease post your question at the AskQ platform.
https://www.kiasuparents.com/kiasu/askq/

]]>https://forum.kiasuparents.com/post/1719746https://forum.kiasuparents.com/post/1719746Mon, 19 Sep 2016 09:48:26 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 19 Sep 2016 05:52:12 GMT]]>Moderator's note: Question moved to https://www.kiasuparents.com/kiasu/question/hi-all-need-help-for-this-question-tiaamy-beatrice/. Please use https://www.kiasuparents.com/kiasu/askq/ from now onwards to ask your academic questions. You will get much better and quicker response there, and it will be easier for you to track answers to your questions. Thank you.

]]>https://forum.kiasuparents.com/post/1719680https://forum.kiasuparents.com/post/1719680Mon, 19 Sep 2016 05:52:12 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Thu, 15 Sep 2016 01:02:37 GMT]]>tks!!!

]]>https://forum.kiasuparents.com/post/1718930https://forum.kiasuparents.com/post/1718930Thu, 15 Sep 2016 01:02:37 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 14 Sep 2016 09:55:23 GMT]]>

chloecube:
need help on this.


3 boys, Adrian, bobby and calvin learnt to make some cookies.
they made an average of 138 cookies
Adrian and bobby made an average of 136 cookies, bobby and calvin made and average of 125 cookies. How many cookie did each of the boy made?

I forgotten how to do average already 😞
Avg (A, B, C) -> 138
Total (A, B, C) -> 138 x 3 = 414

Avg (A, B) -> 136
Total (A, B) -> 136 x 2 = 272

C made (414 - 272) = 142 cookies

Avg (B, C) -> 125
Total (B, C) -> 125 x 2 = 250

B made (250 - 142) = 108 cookies

A made (272 - 108) = 164 cookies

]]>https://forum.kiasuparents.com/post/1718812https://forum.kiasuparents.com/post/1718812Wed, 14 Sep 2016 09:55:23 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 14 Sep 2016 09:50:27 GMT]]>Hi chloecube, questions should be posted on the AskQ platform now,

You can access it here: https://www.kiasuparents.com/kiasu/askq/

]]>https://forum.kiasuparents.com/post/1718810https://forum.kiasuparents.com/post/1718810Wed, 14 Sep 2016 09:50:27 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 14 Sep 2016 08:30:07 GMT]]>Moderator's Note: Question converted to https://www.kiasuparents.com/kiasu/question/17235-2/. For all academic questions, please use our https://www.kiasuparents.com/kiasu/askq/ which is specifically intended for this purpose. Thank you.

]]>https://forum.kiasuparents.com/post/1718794https://forum.kiasuparents.com/post/1718794Wed, 14 Sep 2016 08:30:07 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Tue, 13 Sep 2016 10:40:31 GMT]]>Algebra. heard from a mom that her child was taught in school by a relief teacher. She used it in Psle & passed with flying colors.

]]>https://forum.kiasuparents.com/post/1718634https://forum.kiasuparents.com/post/1718634Tue, 13 Sep 2016 10:40:31 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Sun, 11 Sep 2016 13:06:11 GMT]]>Moderator's Note: Question converted to https://www.kiasuparents.com/kiasu/question/16998-2/. For all academic questions, please use our https://www.kiasuparents.com/kiasu/askq/ which is specifically intended for this purpose. Thank you.

]]>https://forum.kiasuparents.com/post/1718309https://forum.kiasuparents.com/post/1718309Sun, 11 Sep 2016 13:06:11 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Sun, 28 Aug 2016 15:43:50 GMT]]>

gem:
Hi all, need help for this question.


David took out all the coins in his piggy bank. They were made up of only twenty and fifty-cent coins. There were 12 fifty-cent coins more than twenty-cent coins. The total value of the fifty-cent coins was $21 more than the total value of the twenty cent coins. Find

a) the number of fifty-cent coins in David's piggy bank
b) the total value of the coins David had.

Can anyone help to draw the model for this question and explain your answers. It seems confusing to me.

Thanks.
http://i65.tinypic.com/1mfih.jpg\">

]]>https://forum.kiasuparents.com/post/1714423https://forum.kiasuparents.com/post/1714423Sun, 28 Aug 2016 15:43:50 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Sat, 27 Aug 2016 10:54:09 GMT]]>We will compare the difference in value if they are the same quantity. So we take away 12 coins of 50c, value at $6, to make the quantity the same.

Now with same number of coins each, difference in value = 21-6= $15

Difference of one 50c & one 20c is $0.30

Number of 20c coins = 15/0.3 = 50
A) number of 50c coins = 50+12= 62 #

B) value of 20c = 50 x 0.2 = $10
Value of 50c = 62 x 0.5 = $31
Total value = $10 + $31 = $41##

]]>https://forum.kiasuparents.com/post/1714206https://forum.kiasuparents.com/post/1714206Sat, 27 Aug 2016 10:54:09 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Sat, 27 Aug 2016 10:02:20 GMT]]>Hi all, need help for this question.


David took out all the coins in his piggy bank. They were made up of only twenty and fifty-cent coins. There were 12 fifty-cent coins more than twenty-cent coins. The total value of the fifty-cent coins was $21 more than the total value of the twenty cent coins. Find

a) the number of fifty-cent coins in David’s piggy bank
b) the total value of the coins David had.

Can anyone help to draw the model for this question and explain your answers. It seems confusing to me.

Thanks.

]]>https://forum.kiasuparents.com/post/1714199https://forum.kiasuparents.com/post/1714199Sat, 27 Aug 2016 10:02:20 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Fri, 26 Aug 2016 13:15:59 GMT]]>

Bunny27:
Hi, pls help on this question.


Miss Phua saved some 20-cent coins and 50-cent coins in the ratio of 3:4 in a box. She then decided to replace 1/3 of the 20-cent coins with the same number of 50-cent coins.The value of the amount she saved increased by $4.50. How much money was there in the box at first?
Thank you!
------------20-cents----50-cents
Before-------3u----------4u
After --------2u----------5u (because 1/3(3u)->u)
remove
1/3 20ct
and add
same number of 50 cents

50u-20u->450
30u->450
u->15
Money in box at first : 3(15)(0.20)+4(15)(0.50) = 9+30 = $39

]]>https://forum.kiasuparents.com/post/1714144https://forum.kiasuparents.com/post/1714144Fri, 26 Aug 2016 13:15:59 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Fri, 26 Aug 2016 12:15:33 GMT]]>Hi, pls help on this question.


Miss Phua saved some 20-cent coins and 50-cent coins in the ratio of 3:4 in a box. She then decided to replace 1/3 of the 20-cent coins with the same number of 50-cent coins.The value of the amount she saved increased by $4.50. How much money was there in the box at first?
Thank you!

]]>https://forum.kiasuparents.com/post/1714126https://forum.kiasuparents.com/post/1714126Fri, 26 Aug 2016 12:15:33 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 24 Aug 2016 10:10:37 GMT]]>

mumof8:
Hi can someone help with this sum. TIA!


28% of the people in a party are men. The number of women is 5/7 of the number
of men. The ratio of girls to women is 3 : 5. There are 48 more boys than men.
How many people are there at the party?
Men = 28%
Women = 5/7 of men = 5/7*28%= 20%
Girls : women is 3:5 =>3/5*20%=12%
Boys= 100-28-20-12=40%
40%-28%=12% is 48
Therefore 100% = (48/12)*100 =400

]]>https://forum.kiasuparents.com/post/1713419https://forum.kiasuparents.com/post/1713419Wed, 24 Aug 2016 10:10:37 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Wed, 24 Aug 2016 09:50:38 GMT]]>Hi can someone help with this sum. TIA!


28% of the people in a party are men. The number of women is 5/7 of the number
of men. The ratio of girls to women is 3 : 5. There are 48 more boys than men.
How many people are there at the party?

]]>https://forum.kiasuparents.com/post/1713415https://forum.kiasuparents.com/post/1713415Wed, 24 Aug 2016 09:50:38 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Tue, 23 Aug 2016 05:49:58 GMT]]>Hi guys! thank you so much for your help and Joy of Learning 111 your model is easier for me to understand. Thanks!!

]]>https://forum.kiasuparents.com/post/1712922https://forum.kiasuparents.com/post/1712922Tue, 23 Aug 2016 05:49:58 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 22 Aug 2016 02:17:01 GMT]]>http://i66.tinypic.com/vfwcwh.jpg\">

]]>https://forum.kiasuparents.com/post/1712475https://forum.kiasuparents.com/post/1712475Mon, 22 Aug 2016 02:17:01 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 22 Aug 2016 01:50:15 GMT]]>You have to draw the model to visualise.

Amirul = 6 small units for 60% and 4 small units for 40%. Shade 6 small units to differentitate 60% and 40%.
Fatimah = convert 25% into 1 BIG Unit out of 4 BIG Units. Since 25% is equal to Amirul’s 60%, hence the 1 BIG Unit will be cut into 6 small units. Fatimah will have 24 small units altogether. Shade Fatimah’s 6 units to differentiate 25%.

Amirul should have 10 units (6 units "shaded" + 4units "unshaded") and Fatimah should have 24 units (6 units "shaded" + 18 units "unshaded").

Add up all their units:10 units + 24 units = 34 units
34 units = 170 marbles
1 unit = 5 marbles

a) Amirul has 10 units. 10 units X 5 marbles = 50 marbles
b) To have an equal number of marbles, both must have 17 units of marbles each. Amirul shall receive 7 more units friom Fatimah. Hence, 7 units of marbles = 7 X 5 = 35 marbles

Hope that helps you.

]]>https://forum.kiasuparents.com/post/1712454https://forum.kiasuparents.com/post/1712454Mon, 22 Aug 2016 01:50:15 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 22 Aug 2016 01:36:29 GMT]]>

mumof8:
Hi


I need help with this problem sums.. TIA!!

Amirul and Fatimah had 170 marbles. 60% of Amirul's marbles was equal to 1/4 of Fatimah's
marbles.

a) How many marbles did Amirul have?
b) How many marbles must Fatimah give to Amirul so that both of them would have
an equal number of marbles?

Let A have 10U.
6U of A = 1/4 of F => F has 24U

You should be able to build the model from here

]]>https://forum.kiasuparents.com/post/1712449https://forum.kiasuparents.com/post/1712449Mon, 22 Aug 2016 01:36:29 GMT<![CDATA[Reply to Q&amp;A - P5 Math on Mon, 22 Aug 2016 00:57:44 GMT]]>Hi


I need help with this problem sums… TIA!!

Amirul and Fatimah had 170 marbles. 60% of Amirul’s marbles was equal to 1/4 of Fatimah’s
marbles.

a) How many marbles did Amirul have?
b) How many marbles must Fatimah give to Amirul so that both of them would have
an equal number of marbles?

]]>https://forum.kiasuparents.com/post/1712434https://forum.kiasuparents.com/post/1712434Mon, 22 Aug 2016 00:57:44 GMT