Comments on: Singapore Math Tests..from Singapore http://singaporemathsource.com/singapore-math-testsfrom-singapore/ Wed, 04 Jan 2012 01:54:51 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Adeline Lim http://singaporemathsource.com/singapore-math-testsfrom-singapore/comment-page-1/#comment-1959 Adeline Lim Wed, 23 Jun 2010 06:10:57 +0000 http://smartt.wordpress.com/?p=724#comment-1959 Dear Sir Thank you very much for putting up the top school exam papers on the website. I really appreciate it as I have been printing them out for my neighbour's children who could not afford to buy the ones from the market. This year, I have realised that only the Raffles 2009 papers were listed but not the rest of the schools. Plse advise. Sincere thanks for the time and effort in collating all these papers. Best, Adeline Lim Dear Sir
Thank you very much for putting up the top school exam papers on the website. I really appreciate it as I have been printing them out for my neighbour’s children who could not afford to buy the ones from the market. This year, I have realised that only the Raffles 2009 papers were listed but not the rest of the schools. Plse advise. Sincere thanks for the time and effort in collating all these papers.

Best,
Adeline Lim

]]> By: Grade 6 Word Problem Solutions « http://singaporemathsource.com/singapore-math-testsfrom-singapore/comment-page-1/#comment-41 Grade 6 Word Problem Solutions « Mon, 25 May 2009 08:54:35 +0000 http://smartt.wordpress.com/?p=724#comment-41 Earlier this month, I posted the following problem from a Nanyang Primary School 2007 Preliminary Examination I found [...] Earlier this month, I posted the following problem from a Nanyang Primary School 2007 Preliminary Examination I found [...]

]]> By: rocky http://singaporemathsource.com/singapore-math-testsfrom-singapore/comment-page-1/#comment-40 rocky Sun, 24 May 2009 13:18:55 +0000 http://smartt.wordpress.com/?p=724#comment-40 The first part has easy numbers and you can draw the nice picture: aaaaaaaa|bbb so A/B is 70% But I was stumped to find a nice way to reduce A to 60%. I had to pull out algebra: A/(3+A) = 60/100 100A = 60(3+A) [cross mult] 100A = 180 + 60A 40A = 180 A = 4.5 kg total = A+3 = 7.5 kg Should I think of this as "cheating" or is algebra allowed? The first part has easy numbers and you can draw the nice picture:

aaaaaaaa|bbb

so A/B is 70%

But I was stumped to find a nice way to reduce A to 60%. I had to pull out algebra:

A/(3+A) = 60/100

100A = 60(3+A) [cross mult]

100A = 180 + 60A

40A = 180

A = 4.5 kg

total = A+3 = 7.5 kg

Should I think of this as “cheating” or is algebra allowed?

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