Q&A - PSLE Math

[turquoise]

parent135:

beatrice:

parent123 how did you do the geometry question?? i(im a student, just took it today) found it impossible. the othter questions were easy to me but i had no idea about the geometry question. i spent like 1 hour looking at it(im not exxagerating) oh and good luck on chinese tmr!!

180degrees/3=60degrees
60degrees/3=30degrees
180degrees-30degrees=150degrees

this is my solution for q17. hope its the one you are asking for

0

Isn't 60degrees/3=20degrees?

[parent135]

MummyJamie:

Ohh! And for paper one, the second last question, the computer one, what did ya'll get?


I got 100 minutes. Many are saying it's 25.

o_o

oh yes i got 100 minutes too.

[small]

MummyJamie:

Sally baked some cookies to sell. ¾ of them were chocolate cookies and the remaning were almond cookies. After she sold 210 chocolate cookies and 5/6 of the almond cookies, she had 1/5 of the cookies left. How many cookies did she sell?


That one was 960 right?

Most of us got that.

Plese share your working,thanks.

[nani]

MummyJamie:

Ohh! And for paper one, the second last question, the computer one, what did ya'll get?


I got 100 minutes. Many are saying it's 25.

o_o

Same here!!! 100 right??? 25x4=100 rite... i think so...

[parent135]

turquoise:

parent135:

[quote=\"beatrice\"]parent123 how did you do the geometry question?? i(im a student, just took it today) found it impossible. the othter questions were easy to me but i had no idea about the geometry question. i spent like 1 hour looking at it(im not exxagerating) oh and good luck on chinese tmr!!

180degrees/3=60degrees
60degrees/3=30degrees
180degrees-30degrees=150degrees

this is my solution for q17. hope its the one you are asking for

0

Isn't 60degrees/3=20degrees?[/quote]sorry i mean 60degrees/2=30 degrees

[MummyJamie]

small:

MummyJamie:

Sally baked some cookies to sell. ¾ of them were chocolate cookies and the remaning were almond cookies. After she sold 5/6 of the chocolate cookies and 210 almond cookies, she had 1/5 of the cookies left. How many cookies did she sell?


That one was 960 right?

Most of us got that.

Plese share your working,thanks.

Chocolate Cookies : Almond Cookies
3 : 1
= 30 : 10

30units / 6 = 5units ( left )

Left:

Chocolate Cookies : Almond Cookies
30 : 10
5 : 3

30u + 10u = 40u
40u / 5 = 8u ( cookies left )
8u - 5u ( chocolates left ) = 3u ( almonds left )
10u - 3u = 7u ( Almonds sold )

7u -> 210
1u -> 30
25u + 7u = 32u
32 x 30 = 960cookies

[MummyJamie]

nani:

Same here!!! 100 right??? 25x4=100 rite... i think so...

I drew a diagram.

[nothing2do]

nani:

MummyJamie:

Ohh! And for paper one, the second last question, the computer one, what did ya'll get?


I got 100 minutes. Many are saying it's 25.

o_o

Same here!!! 100 right??? 25x4=100 rite... i think so...

same here 100

[nothing2do]

MummyJamie:

I'm Jamie, child of my mum's account XD


PSLE Maths was tough for me. I was able to answer all the questions, though. For the angles/geometry one, most of my classmates got 120, 135 or 150. I used guess & check at first, but then used ratio and got 120. Anyone used ratio & got that too?

mine daughter also use ratio and get 120

[nani]

Anybody remembers the curry puff qn? :?