Q&A - PSLE Math

[tianzhu]

TT2:

Got it. Thank you, tianzhu

Hi

You're welcome.

Best wishes

[smileplease]

tianzhu


thank you for your help on the 2 Qs.

[tianzhu]

smileplease:

tianzhu


thank you for your help on the 2 Qs.

Hi

You're welcome.

Best wishes

[tianzhu]

Hi


CHS P6 SA2 Q5

Total playing time ------ 5*40 ------ 200

200/8 ------ 25

Average time per pupil ----- 25

CHS P6 SA2 Q7

Divide the rectangle into 4 parts vertically.
Divide the rectangle into 2 parts horizontally.

Altogether, there are 8 small rectangles or units.

5 units ------90
1 unit ----- 18

Area of XBC ----- 3 units ------ 54.

CHS P6 SA2 Q10

Jane ------ 8*4 or 32 toys in 4 days.

32 + 18 ----- 50
13 - 8 ----- 5

50/5 ------ 10

Mary ------10 days

Best wishes

[tianzhu]

Hi kavisuresh


MGS Q15 SA2 2010

G:R ------- 125:100
B: (G+R) ------ 180:225 ----- 80% of (G+R)

G:R:B ------ 125180 ------ 25:20:36

36 – 25 ------ 11

11 units ------ 11

1 unit ------ 1

G --------25
R --------20
G+R -------45

For Q16, please refer to the solution in the WS and give it a try again.

Best wishes

[kavisuresh]

tianzhu:

Hi kavisuresh


Just to check,the 2 and 6 on the net, are they written by you or from the worksheet?

Best wishes

It is filled and given in the worksheet. I drew it by side of question.
thanks.

[tianzhu]

Hi kavisuresh


MGS P6 SA2 Q11 2010P-------Please refer to this link.
http://psle2010a.blogspot.com/2010/10/mgs-2010-p6-prelim-p2-q11.html

For Q8, please study the solution given in the WS one more time.

Best wishes

[chl72]

Michael bought some apples and gave half of them to Jackson.

Jackson bought some pears and gave half of them to Michael.
Micheael threw away 25 pears that were rotten while Jackson bought for himself another 20 apples.
After that, the number of pears to apples Michael had were in the ratio of 1:4 and the number of pears to apples Jackson had were in the ratio of 1:2.
How many pears did Jackson buy?


Hi TianZhu,
Paisay to trouble you, what's the answer for this Q ah?
TIA

[tianzhu]

Hi kavisuresh


NY SA2 P6 Q3, 4 and 6 2010.
Please refer to Observer's solutions.

http://2.bp.blogspot.com/_EG8oMs7TIYA/TKh3WDOTKUI/AAAAAAAAAWQ/557Zb-x6l7c/s1600/MathsP610SA2FractionNYP2A03.jpg

http://2.bp.blogspot.com/_EG8oMs7TIYA/TKh3oc1SYlI/AAAAAAAAAWU/-f9Y8ar47TM/s1600/MathsP610SA2VolumeNYP2A04.jpg

http://psle2010a.blogspot.com/2010/10/whole-number-p6-2010-sa2-ny-p2-q6.html

Wishing you the very best for PSLE 2011.

Best wishes

[tianzhu]

chl72:

Hi TianZhu,
Paisay to trouble you, what's the answer for this Q ah?
TIA

Hi

The answer is 80.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php?f=68&t=25129&start=80

Best wishes