Q&A - PSLE Math

[YumYum]

Okie thanks

[Michaelia0816]

tianzhu:

Michaelia0816:

REMINDER!!

The picture is could be found at this website,pic.twitter.com/rg7SCB5F

Hi girl

Wow, the first reminder I received in KSP.

Better answer, if not later kena “yellow card”.

Unfortunately, the link no longer works.

I saw the question briefly this morning.

Best wishes

Oh really, you should be really honoured actually to be receiving one!! :evil:

[Michaelia0816]

Ah Mao:

Michaelia0816: need to emphasize the 5x5, 3x3 working is correct. BUT cannot write 9cm2, must be 9units cm2. cos the 3 we use for vertical height is not the ACTUAL measurement, is a proportion


YumYum
hard to understand without diagram:
try to draw a time line on a piece of paper?

Analysis:
Raju drove at a constant speed from his house to town B.

draw:
H -------------------------------B

On his way, he passed Town A.

draw:
H -------------------A ------------B (on the same diagram)


At 9.20 a.m he was 383 KM from Town B and 205 KM from Town A.

draw:
H --------------920am----------A ---------------------B
205km 383-205=178km

At 12.50 pm, he stopped at a petrol kiosk which was midway between Town A and Town B.

draw:
H --------------920am----------A ---------------------B
205km 178km
midway means 178 / 2 = 89km

draw:
H --------------920am----------A ----------P-----------B
205km 89km 89km


At what speed did Raju drive before he came to the petrol kiosk?
draw:
H --------------920am----------A ----------1250pm: P-----------B
205km 89km 89km


time taken: 920am to 1250pm is 3.5hours.

from 920am to 1250pm he drive from diagram:
205 + 89 = 294km

so speed = D/T
= 294km/3.5h
= 84km/h

I use the short-cut for units(u)

[Michaelia0816]

Ah Mao, thanks you and also Tianzhu!!!

[Michaelia0816]

Finally completed all the crazy questions! Just now, I been thinking if the layers is the top 2, middle 2 or bottom 2!!! A bit confusing for P6 student like me!

[Michaelia0816]

Finally completed all the crazy questions! Just now, I been thinking if the layers is the top 2, middle 2 or bottom 2!!! A bit confusing for P6 student like me!

[tianzhu]

Michaelia0816:

Finally completed all the crazy questions! Just now, I been thinking if the layers is the top 2, middle 2 or bottom 2!!! A bit confusing for P6 student like me!

Hi

You may also look at the possiblity of using \"number pattern\" to solve your question.

1,4,9,16,25,36

Best wishes

[Ah Mao]

Michaelia0816: oh you are the p6 student, i thought u r a parent.


Erm which school paper/year is this qn from? 2011 prelim?

[Michaelia0816]

From my exercise practice paper and I am taking this year the prelim. I can use my parent account for my HW, Tianzhu knows what happened, you know about my mum tutor!

[homeworkmummy]

Hi, can someone help me with St Nicks 2011 P6 SA1 paper Q26. Can’t upload the document as I don’t have a scanner…appreciate it.