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Re:P5 Maths External Changed & Gap & Difference
(Forum/ThinkingMath@OnSponge)
... a combination of Gap & Difference and Simultaneous Equations. Let me know if you require more explanation as this one is a little tricky for a P5. [USER POSTED IMAGE] ...
Wednesday, 01 September 2010
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Re:P6 Guess & Check
(Forum/ThinkingMath@OnSponge)
... largest and the smallest of the original numbers? For this question, I will 'cheat' a little. First you will notice that in the end, all four numbers are the same, so we can work backwards. Also, ...
Sunday, 22 August 2010
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Re:Can anyone help me?
(Forum/ThinkingMath@OnSponge)
... : 100 7 : 5 (Divide by 20) 49 : 35 (Multiply by 7) In this case, it is a little difficult to go from 140 to 49 as they do not have a common factor. So instead we make two steps, first to 7 and then ...
Saturday, 31 July 2010
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Re:Constant Difference & Remainder
(Forum/ThinkingMath@OnSponge)
... What length of rope was cut from each piece? This question is similar to your last post but a little more confusing because of the decimal. You can apply the Constant Difference approach. Before Rope ...
Thursday, 29 July 2010
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Re:Chap 9 Key Constructs
(Forum/ThinkingMath@OnSponge)
... well as the solutions in the back of the +hinkingMath book. It is a little difficult to provide a general answer that will help you at this point. It would be better to use specific questions you are ...
Tuesday, 27 July 2010
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Re:Model Drawing
(Forum/ThinkingMath@OnSponge)
4/5 of Charlie's present age is 1/3 of Ryan's age in 3 years' time. Their total age in 5 years' time is 58. What is Ryan's present age? For this question, we can use a little bit of reasoning to get ...
Tuesday, 27 July 2010
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Re:Number x Value & Constant Difference
(Forum/ThinkingMath@OnSponge)
... spoons and forks. This makes it a little more difficult. Given we know a ratio between forks and spoons, the total value and a difference in per unit price between forks and spoons, you could try using ...
Saturday, 24 July 2010
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Re: Constant Difference
(Forum/ThinkingMath@OnSponge)
For the second question - part B The question is a little vague "What happens?" Well many things can happen and so there can be many answers. First, let's assume that everything remains the same ...
Friday, 16 July 2010
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Re: P6 Maths Prelim 2009 Qs
(Forum/ThinkingMath@OnSponge)
Yeah. My daughter created a powerpoint for this last week. Just waiting for her to convert it to flash now - her first time. So taking a little longer than I had hoped. One of the draw backs of cheap ...
Thursday, 01 July 2010
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Re:P5 Maths - percentage
(Forum/ThinkingMath@OnSponge)
... such that there is nothing left. Again, you would need to check with observer the logic behind his/her solution as, to be honest, I find it a little confusing which is nothing new for me - always blur ...
Thursday, 24 June 2010
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Re:P6: External Unchanged
(Forum/ThinkingMath@OnSponge)
Hi Lynette, It's a little difficult to place full solutions with full explanations for all questions. Thus one of the main reasons for the forum, allowing parents and kids to interact with the authors ...
Saturday, 19 June 2010
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Re:Speed
(Forum/ThinkingMath@OnSponge)
... have provided a slightly different version (a little less writing) however it is fundamentally the same. [USER POSTED IMAGE] Note: I have omitted the reason why they cover the 44parts in the ...
Friday, 18 June 2010
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Re:Maths
(Forum/ThinkingMath@OnSponge)
... answer as Perseverance above. Just following the Constant Difference format a little closer Before A : B 134 : 18 (Difference 116) After A : B 5 : 1 (Difference 4units) Since the difference ...
Wednesday, 16 June 2010
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Re:p6 maths
(Forum/ThinkingMath@OnSponge)
... 3/5 of the amount he saved in February .find his monthly average saving in the 3 months? I find the wording in the first sentence a little misleading. Do you take 40% of $600 for his saving? Or is ...
Tuesday, 15 June 2010
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Please help!
(Forum/ThinkingMath@OnSponge)
:unsure: I am not sure how to answer this question. It is a little tough. Hope u r able to help solve this one. Thank you A rectangular tank of base 120cm by 75cm was 1/2filled with water. At 12pm,Mr ...
Wednesday, 09 June 2010
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Re:P6 Maths
(Forum/ThinkingMath@OnSponge)
... way does allow it to be solved. For such questions, I leverage Number x Value method, while it takes a little longer for this question, it gives me a consistent structure / format for managing my thoughts. ...
Monday, 07 June 2010
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Re:Maths Challenging Sums
(Forum/ThinkingMath@OnSponge)
OK had a little more time :) A jug contained 4 litre of pure orange juice. 1/4 of the juice was removed and replaced by an equal amount of lemon juice. The content was thoroughly mixed and replaced ...
Sunday, 30 May 2010
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Re:Help please - Decimal Problem Sum
(Forum/ThinkingMath@OnSponge)
... the blue caps and 2 of the red caps is equal to 530 Then solving using the methods for Simultaneous Equations. However, this would be a little slower than just adding up the two equations like: 0.7 ...
Sunday, 30 May 2010
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Re:P6 SPEED QUESTION
(Forum/ThinkingMath@OnSponge)
This question is probably a little easier than you think. The challenge is that not much information is provided directly - only their speed, and thus at first glance it appears as though information ...
Friday, 28 May 2010
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Re:P4 Maths
(Forum/ThinkingMath@OnSponge)
... sums. Nothing to lose, right? nathen wrote: thank you perseverance. i guess this is why you have that name:) still a little blur behind your solution but follow it now. it seems like u are combining ...
Monday, 24 May 2010
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Re:P4 Maths
(Forum/ThinkingMath@OnSponge)
thank you perseverance. i guess this is why you have that name:) still a little blur behind your solution but follow it now. it seems like u are combining algebra and models together. it is normal ...
Monday, 24 May 2010
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Re:P6 Maths
(Forum/ThinkingMath@OnSponge)
Thank you Chris, now I understand about the remainder question. I'm little confused at first becos of the fraction given instead of whole nos that I had learned from P5 Conquer sum. Thanks again. :) ...
Wednesday, 19 May 2010
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Transitive Implications
(Forum/Lighter Moments)
One day a little girl was sitting and watching her mother do the dishes at the kitchen sink. She suddenly noticed that her mother had several strands of white hair sticking out in contrast on her brunette ...
Wednesday, 05 May 2010
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Re:ratio
(Forum/ThinkingMath@OnSponge)
Hi Alfred, You can find a number of these questions in the P5 +hinkingMath book Chapter 2.2 This solution is the same as that provided by Perseverance, just a little more visual. [USER POSTED ...
Sunday, 02 May 2010
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Re:P6 Maths
(Forum/ThinkingMath@OnSponge)
Thanks Chris, sorry, I'm still little confused on part (i) answer. Is there another way to solve this question. ...
Sunday, 02 May 2010
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Re:p6 Math
(Forum/ThinkingMath@OnSponge)
... as only the rubies change. This question is a little tedious in that there are a few steps to take. [USER POSTED IMAGE] ...
Friday, 30 April 2010
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Re: P6 Maths
(Forum/ThinkingMath@OnSponge)
... and never look back. What makes these questions complex? The two unknowns. To do this in models can get a little hairy depending upon the numbers and ratios provided. Later tonight when I have ...
Friday, 30 April 2010
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Re:P5 Maths
(Forum/ThinkingMath@OnSponge)
Hi, Reynold Thank you for the detailed step by step solution. Though I am still a little 'hazy', but i think I got the idea. Thank you once again for your help. I appreciate it. : :) :) ) ...
Tuesday, 27 April 2010
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Re: Synthesis and Transformation
(Forum/Language & Humanities)
I don't think so. I would put either: - Everyone except little Sally perished when the plane crashed into the sea; or - Except for little Sally, everyone perished when the plane crashed into the ...
Wednesday, 21 April 2010
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Synthesis and Transformation
(Forum/Language & Humanities)
Everyone perished when the plane crashed into the sea. Only little Sally did not. Can the answer be. Everyone perished when the plance crashed into the sea except little Sally. Please advise. ...
Wednesday, 21 April 2010
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Re:P3 Maths: Divisibility Rules
(Forum/ThinkingMath@OnSponge)
... of 5 makes little sense. Perhaps the question should go something like this "List the numbers between 300 and 400 where the numbers will leave a remainder of 5 when divided by 6 and will also leave ...
Friday, 16 April 2010
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Re:P5 Maths
(Forum/ThinkingMath@OnSponge)
Hi, Thank you for your solutions. I will need little more time to understand the basis of the different approaches. :P ...
Sunday, 11 April 2010
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Re:P6 speed
(Forum/ThinkingMath@OnSponge)
384 km/h is slightly above the speeds of the F1 race cars zipping around Sepang circuit :P Your answer for part (a) is correct but (b) and (c) are a little on the high side ;) (b) Dave on the final ...
Sunday, 04 April 2010
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Re:P6 Maths 2009 Rosyth School SA1
(Forum/ThinkingMath@OnSponge)
Question 17 is a Part-Whole Relationship Type 3 question found in the P5 book. This one is just a little more complicated because we are adding fractions of cookies each ie + 1/3. [USER POSTED IM ...
Sunday, 28 March 2010
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Re:P5 Part Whole Relationship
(Forum/ThinkingMath@OnSponge)
For the first question on page 33, you solve it the same as the example on page 32. The second question does have a little trick. It says Ema spent 1/4 and Keng Wee spent 4/7 and in the end the had the ...
Sunday, 28 March 2010
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Re:Maths
(Forum/ThinkingMath@OnSponge)
... The second is a little 'cleaner'. [USER POSTED IMAGE] ...
Wednesday, 24 March 2010
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Re:Help me with my P5 Math... please?
(Forum/ThinkingMath@OnSponge)
er, its hard to understand with the dots around maybe you want to change it a little :( ...
Wednesday, 24 March 2010
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P5 Maths - Volume
(Forum/ThinkingMath@OnSponge)
... out some little cuboids measuring 2cm by 3cm by 4cm. What is the minimum amount of wood wasted? Given answer is 360 cm³. Cannot understand the explanation given in this link. Is the given answer ...
Tuesday, 23 March 2010
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Re:P5 Maths - Volume
(Forum/ThinkingMath@OnSponge)
... little more complex arrangements to consider than the 3 major orientations (but I hope they don't stress the kids out that much by doing so). In this case, where the bar is sufficient thick we only need ...
Monday, 22 March 2010
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Re:P6 Maths
(Forum/ThinkingMath@OnSponge)
I believe ziggy has decided to change ratio from 30:5:2 to 60:10:4 because the number of Ball-point pens that Mrs. Tan bought is 60 and changing the ratio to match is a little more efficient than solving ...
Saturday, 20 March 2010
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Re:maths
(Forum/ThinkingMath@OnSponge)
Excellent answers. A lot of thought has gone into these questions .... Yes. These questions can be found in Maths Olympia P5/P6. I do tend to agree with Reynold that these questions are a little extreme ...
Monday, 08 March 2010
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Re:MODEL DRAWINGS
(Forum/ThinkingMath@OnSponge)
Chris Rogers wrote: :) And you seem to have lost a little weight in your new avatar! Did you find some magical formula to get younger? :laugh: Yes! It's a secret formula though! ...
Thursday, 04 March 2010
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Re:MGS Science P5 CA1 2009
(Forum/Science)
... without bringing it to boil or with minimal boiling :P This question is not worth arguing over. The framing of the question could be done a little better to avoid contentious answers. The good part ...
Wednesday, 03 March 2010
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Re:maths
(Forum/ThinkingMath@OnSponge)
... 100 legs. So 90 is too little in fact we are 10 short. We only have 30 animals. To increase the number of legs we need to increase the number of pigs and reduce the number of chickens. If the child ...
Wednesday, 03 March 2010
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Re:MODEL DRAWINGS
(Forum/ThinkingMath@OnSponge)
... :) And you seem to have lost a little weight in your new avatar! Did you find some magical formula to get younger? ...
Wednesday, 03 March 2010
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Re:Problem sums
(Forum/ThinkingMath@OnSponge)
sorry i little bit blurr. isn't Reynold solution the same as Beth? ...
Sunday, 28 February 2010
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Re:Methods, heuristics, all over the place!
(Forum/ThinkingMath@OnSponge)
... it is. If you girl is anything like mine she has little time for homework let alone additional books, papers, etc. In fact you will find a number of discussions, blogs, articles on such a topic. I ...
Friday, 26 February 2010
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Re:Children's Science Examination!
(Forum/Lighter Moments)
... education or just poor attitude to study! Yeah. It seemed a little corny until you explained that they were actual answers given by students. Now it has become a real cool post :P Anyway below is ...
Thursday, 25 February 2010
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Re:Help needed - Fraction
(Forum/ThinkingMath@OnSponge)
... show you the solution using unitary rather than models since for this question its a little more efficient and versatile. [USER POSTED IMAGE] ...
Saturday, 20 February 2010
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Re: need help...
(Forum/ThinkingMath@OnSponge)
sorry if the table is a little squished! ...
Wednesday, 10 February 2010