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P6 Prelim questions
(Forum/ThinkingMath@OnSponge)
... the name in the question was changed but the rest remained the same.Curious to know the source of this question, any idea? Sorry for the blunder in the earlier question-lucky draw as I didn't read the ...
Monday, 06 September 2010
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P6 Circles
(Forum/ThinkingMath@OnSponge)
Lovely wrote: Hi!I have encountered a problem with this question.Please help ,i really need to know how to work out the solution. :S Thx Hi Lovely, There is a faint line in the diagram, so draw ...
Monday, 06 September 2010
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P6 Circles "please HELP !"
(Forum/ThinkingMath@OnSponge)
Hi!I have encountered a problem with this question.Please help ,i really need to know how to work out the solution. :S Thx [USER POSTED IMAGE] ...
Monday, 06 September 2010
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Re:Prelim questions
(Forum/ThinkingMath@OnSponge)
... found in Chapter 2.3 of the P5 +hinkingMath book. You will a number of similar examples there. [USER POSTED IMAGE] Let me know if there are parts that are a little difficult to understand as this ...
Sunday, 05 September 2010
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Re:P5 maths- area of Triangle
(Forum/ThinkingMath@OnSponge)
... well I don't think he knows what I am talking or rather I did not catch what he means. I will find out and perhaps, if you are interested, I will let you know. What do you mean when you wrote, I quote,"Really ...
Sunday, 05 September 2010
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P5 Maths
(Forum/ThinkingMath@OnSponge)
Darryl See wrote: I will let Darryl know when he comes back from school. As I have not seen the marked paper with correction, I am unable to comment on whether his teacher allows "Guess n Check" or ...
Saturday, 04 September 2010
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Re:P5 maths- area of Triangle
(Forum/ThinkingMath@OnSponge)
... had a gut feeling" this will not result is full marks. This is very good advice against using outlandish approach to solve mathematics even the answer(s) happens to be correct. I will let Darryl know ...
Friday, 03 September 2010
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P5 Maths
(Forum/ThinkingMath@OnSponge)
... it now, and like you said, is to solve it by trial and error to determine the sides of the two different squares or knowing the ratio of the area of the different squares whose sum will added to the given ...
Friday, 03 September 2010
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Re: P5 Maths
(Forum/ThinkingMath@OnSponge)
... Small 52 - 1 = 53 (no) 52 - 4 = 48 (no) 52 - 9 = 43 (no) 52 - 16 = 36 (yes) The only thing is we need to assume the solution uses whole numbers only. Once we know that the area of the big square ...
Friday, 03 September 2010
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Re:P5 maths- area of Triangle
(Forum/ThinkingMath@OnSponge)
... you said, is to solve it by trial and error to determine the sides of the two different squares or knowing the ratio of the area of the different squares whose sum will added to the given value. Is ...
Friday, 03 September 2010
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P5 Maths
(Forum/ThinkingMath@OnSponge)
Darryl See wrote: I know what I have to do, but I cannot identify the information I need to solve the question. Need help to identify the necessary information. Q. The attached figure is made up ...
Friday, 03 September 2010
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P5 maths- area of Triangle
(Forum/ThinkingMath@OnSponge)
I know what I have to do, but I cannot identify the information I need to solve the question. Need help to identify the necessary information. Q. The attached figure is made up of two pairs of identical ...
Friday, 03 September 2010
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Re:P5 Maths External Changed & Gap & Difference
(Forum/ThinkingMath@OnSponge)
... this question you can use the External Changed concept. However .... Can you check your question pls. Using the numbers above, you end up with 0.875 sweets left. I know if it was me, I would eat ...
Wednesday, 01 September 2010
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Re: List of combinations
(Forum/ThinkingMath@OnSponge)
Just 1 question though, the $10 is the minimum the jar contains, It can also be multiples of 10 and u can get different answers. As the question did not specify the max. or min. Would like to know how ...
Thursday, 26 August 2010
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P5 Maths
(Forum/ThinkingMath@OnSponge)
... is known as repeated identify.Chris, pls confirm. Hope this helps in your understanding,Hemanth. :) ...
Thursday, 26 August 2010
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P5 Maths
(Forum/ThinkingMath@OnSponge)
Chelsea Chong wrote: Hi, need help to solve the following 2 questions. Thank you. Hi Chelsea Chong, May I know where are these 2 questions from? Don't seem like typical mainstream P5 Maths homework ...
Wednesday, 25 August 2010
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Re:P5 Remainder Concept
(Forum/ThinkingMath@OnSponge)
1) Could you kindly explain, from the question how do you determine the total money as 14units? The 14units is derived by using the concept of equal fractions. We know that the amount left over is ...
Wednesday, 25 August 2010
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Re:P6 Maths
(Forum/ThinkingMath@OnSponge)
Hi there, The difference is not the "to"...this can be overlooked. However, the main issue with the sentence was knowing if they were in the tunnel or out of the tunnel at the start. In your question, ...
Wednesday, 25 August 2010
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Re: Condensation
(Forum/Science)
... what you are having problems with, there could be much more information added to that statement. For example, you may wish to know about when condensation occurs, not just the simple definition of what ...
Tuesday, 24 August 2010
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Re:P5 Maths (Ratio) - Need Help
(Forum/ThinkingMath@OnSponge)
... each other. This Concept can be found in the P4, P5, and P6 books in the +hinkingMath series. For this question, I use the knowledge that P+Z+X+W is 25units. Therefore I can multiply the ratio Z+P+X+W ...
Tuesday, 24 August 2010
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P5 Average with an Unknown Quantity
(Forum/ThinkingMath@OnSponge)
The average mass of some parcels in a box was 20kg at first. When another parcel which weighs 10kg is added into the box, the average mass became 18kg. How many parcels are there in the box now?
Tuesday, 24 August 2010
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Re: P6 maths
(Forum/ThinkingMath@OnSponge)
... and two unknowns. Thus, Simultaneous Equations would be appropriate. 5M + 3S --> 95 1M + 1S --> 25 3M + 3S --> 75 (multiply by 3 and subtract) 2M --> 20 1M --> 10 10 + 1S --> 25 1S --> 15 Mother ...
Tuesday, 24 August 2010
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Re:P6 Maths - Nanyang 2007 P6 Prelim Q34 and Q35
(Forum/ThinkingMath@OnSponge)
... with n sides, where n is 3 or more, is 180⁰x(n-2)). [USER POSTED IMAGE] I'll send bluefire a message, as I know who she is :) I'll have a look at question 35 this afternoon. ...
Monday, 23 August 2010
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P6 Maths
(Forum/ThinkingMath@OnSponge)
... let me know if you are still not clear of the above method of solving this question. Thanks. ...
Sunday, 22 August 2010
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P5 External Changed & Simultaneous Equations
(Forum/ThinkingMath@OnSponge)
I tried solving these 2 questions but I can't. Not even my tuition teacher knows how to. 1)The volume of water in Bottle P was 3/5 of that in Bottle Q. After 60ml of water was added to Bottle P and ...
Saturday, 21 August 2010
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Re: Nan Hua CA2 Q7 & Q15
(Forum/ThinkingMath@OnSponge)
... confused. Can I know why 8u>2/7 became 9u>9/28? Thanks. ...
Friday, 20 August 2010
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Re:Simultaneous Equations
(Forum/ThinkingMath@OnSponge)
... result I need to multiply by 4. So the question becomes, why do we need to multiply by anything? This style of questions have 2 unknown things, in this case the number passed and the number failed. ...
Friday, 20 August 2010
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Fraction & Ratio
(Forum/ThinkingMath@OnSponge)
... Grace. Else gave Grace $170. Now the ratio of Elsie's money to Grace's money is 3:5.How much money did Elsie have at first ? Draw a model and you will know that: $320+$170+$170= 2 units 2 units = ...
Friday, 20 August 2010
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Re:Synthesis and Transformation
(Forum/Language & Humanities)
Hi, I don't know what level you're in as there are a few books in this series n some of them are qte easy. Pr 5 Synthesis n Transformation by J.L.Cheng (Global Publishers) has more challenging quests. ...
Thursday, 19 August 2010
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Re:P5 Maths
(Forum/ThinkingMath@OnSponge)
Well done Hemanth Did you know you can solve it using units right throughout the question until the end like this ... R : T : D 100 : 120 : 60 5 : 6 : 3 6units --> 600 1unit --> 100 total ...
Wednesday, 18 August 2010
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Re:Pri 5 4.3 Average with unknown quantity
(Forum/ThinkingMath@OnSponge)
Can someone explain to me how to find the unknown quantity. I've looked at the example given and the solution but I still don't get it. Johnny bought a certain no. of water bottles at an average price ...
Monday, 16 August 2010
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Pri 5 4.3 Average with unknown quantity
(Forum/ThinkingMath@OnSponge)
Can someone explain to me how to find the unknown quantity. I've looked at the example given and the solution but I still don't get it. Johnny bought a certain no. of water bottles at an average price ...
Monday, 16 August 2010
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Re:P5 Unit 4.3 Q6 (Construct with Unknown Qty)
(Forum/ThinkingMath@OnSponge)
kahyip wrote: Hi, I'm new here. Had just signed up here to learn from everybody else. 6. In the recent Channel W singing competition of 80 singers, the average score was 58.5 marks. Given that the ...
Friday, 13 August 2010
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P5 Unit 4.3 Q6 (Construct with Unknown Qty)
(Forum/ThinkingMath@OnSponge)
Hi, I'm new here. Had just signed up here to learn from everybody else. 6. In the recent Channel W singing competition of 80 singers, the average score was 58.5 marks. Given that the average score of ...
Friday, 13 August 2010
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P5 math onsponge unit 4.3 example
(Forum/ThinkingMath@OnSponge)
Would like to know if the answer printed in the P5 onsponge book unit 4.3 example is a mistake? The question is: Johnny bought a certain number of water bottles at an average price of $12. If he decided ...
Wednesday, 11 August 2010
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P3thinkingMath@onSponge-Page178 Q6
(Forum/ThinkingMath@OnSponge)
Q6(b) Looking at the model, table tennis 6/15 but how do we know 2 units - 6??? Given answer 2 units - 6??? 1 unit - 3 15X3=45 Thanks. ...
Wednesday, 11 August 2010
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Re:More on P5 Ratio
(Forum/ThinkingMath@OnSponge)
... arrived? This question is actually missing information as there is no way to link the beginning ratio to the ending ratio (and there is only one equation with two unknowns). The result is that it will ...
Thursday, 29 July 2010
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Speed P6 Q
(Forum/ThinkingMath@OnSponge)
... than Tom. What is the distance between Town A and Town B? Can't figure it out with so many unknown. Help! ...
Thursday, 29 July 2010
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Re: P5 Maths
(Forum/ThinkingMath@OnSponge)
... i dont know any other methods. I think u made a typo mistake with SHIRT and SKIRT. ...
Thursday, 29 July 2010
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P6 Maths
(Forum/ThinkingMath@OnSponge)
mathmerized wrote: This question is similar to RGS/Prelims/2009/Q18. You could also try solving it after knowing how to solve this question. Hi mathmerized, Thanks for your helpful remainder.Here's ...
Wednesday, 28 July 2010
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Re:P6 5 marks Question
(Forum/ThinkingMath@OnSponge)
This question is similar to RGS/Prelims/2009/Q18. You could also try solving it after knowing how to solve this question. [USER POSTED IMAGE] ...
Wednesday, 28 July 2010
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Re:Help with Algebra
(Forum/ThinkingMath@OnSponge)
... the model method but I never understand algebra or how to use it. Sure i know how to do algebra problem sums but cant use it on hard sums with no algebra. So please someone explain it to me? Hi there, ...
Wednesday, 28 July 2010
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Help with Algebra
(Forum/ThinkingMath@OnSponge)
... the model method but I never understand algebra or how to use it. Sure i know how to do algebra problem sums but cant use it on hard sums with no algebra. So please someone explain it to me? ...
Tuesday, 27 July 2010
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Re:Chap 9 Key Constructs
(Forum/ThinkingMath@OnSponge)
... IMAGE] The sq and triangle concept just boggles my mind. I don't know when to assume for some questions and when not to assume. The gap-and-difference thing also is incomprehensible. By Sq and Triangle ...
Tuesday, 27 July 2010
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Chap 9 Key Constructs
(Forum/ThinkingMath@OnSponge)
... sq and triangle concept just boggles my mind. I don't know when to assume for some questions and when not to assume. The gap-and-difference thing also is incomphrensible.(Excuse me if i spelled it wrongly) ...
Monday, 26 July 2010
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Re:Primary 4 - Fractions (pls clarify method)
(Forum/ThinkingMath@OnSponge)
Thanks for the questions!Its very interesting but i still dont know.... XD ...
Sunday, 25 July 2010
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Re:Number x Value & Constant Difference
(Forum/ThinkingMath@OnSponge)
... spent on spoons, how many forks and spoons did she buy? You will notice that this question has two "unknowns". The first unknown is the units for forks and spoons. The second is the cost of either ...
Saturday, 24 July 2010
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Re: Constant Difference
(Forum/ThinkingMath@OnSponge)
... have equal parts) plus some unknown amount. We will find this soon. Step 2: When May is 15, James is twice Ali's age. - May is 15, so give both Ali and James a box for 15 (equal parts) - But we ...
Friday, 16 July 2010
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Re: Constant Difference
(Forum/ThinkingMath@OnSponge)
Hi Chris How do we know that James' age is 5u + 15? ...
Friday, 16 July 2010
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Re: Repeated Identity
(Forum/ThinkingMath@OnSponge)
... At this point we do not know if the units for B and A are the same as D to E. Thus we may actually have B:A is 1u:2u and D:E is 1p:4p. Instead, we can use the additional ratio given, Circle + Triangle ...
Wednesday, 14 July 2010