MeiYee Leong
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Replies 6
Shaoyang Brandon

Hi. Refer to the 2 images below for the amount spent. :)

6 years ago
Shaoyang Brandon

And the second image.

6 years ago
MeiYee Leong

Thank you so much Brandon!

6 years ago
Kay Yap

Hi Brandon, why is not (5 x$5.50) + ($7.40 x 2) = $42.30

6 years ago
Shaoyang Brandon

Yes, this is the correct step. Add $7.40 x 2 instead of $44.90.

6 years ago
Kay Yap

She had $30.10 left and the question is asking on how much she spent, so we should not add in $30.10.

6 years ago
Shaoyang Brandon

Yes, this is the correct step. Add $7.40 x 2 instead of $44.90.

6 years ago

MeiYee Leong
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Replies 3
Shaoyang Brandon

Hi! Refer to the image for the solution.

6 years ago
Shaoyang Brandon

(b) seems contradicting. For all boys to have the same amount each, Velu must also give to Adrian.

6 years ago
MeiYee Leong

I think u are right there is some error in the question.

6 years ago
Shaoyang Brandon

(b) seems contradicting. For all boys to have the same amount each, Velu must also give to Adrian.

6 years ago
MeiYee Leong

I think u are right there is some error in the question.

6 years ago

MeiYee Leong
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Appreciate help for P4 questions. Thanks.5

Replies 0

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Number and Algebra

Making it visual...

Replies 7
Cyn Puan

Thanks Adrian Ng

6 years ago
Eric Ooi

6 years ago
Adrian Ng

Supposed to be for primary 3.

6 years ago
Shirley Lee

You agree this is p3 topic?

6 years ago
Adrian Ng

Its not in P3 syllabus. I feel its meant for stretching the high achiever.

6 years ago
W.H. Lim

The beginning of algebra in lower primary? Personally I think it's better in the long term. Model-drawing and other fanciful heuristics cease to exist from Sec sch onwards. Algebra and formulas would take over and lessen the number of dying brain cells trying to figure how to start drawing models and ratio-fumbling. Streamline all the syllabuses with China's to give our children a more competitive edge.

6 years ago
Soh Mesen

6 years ago
Shirley Lee

You agree this is p3 topic?

6 years ago

Kim Wong
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Measurement

P5 Maths. Thanks in advance.

Replies 3
Jason Oon

ACD = 1/2 x 32 x (22+16) = 608 BCD = 1/2 x 32 x (22+16) = 608 XCD = 1/2 x 32 x 22 = 352 Unshaded area = 608 x 2 - 352 x 2 = 1216 - 704 = 512

6 years ago
Shaoyang Brandon

Here is a visual explanation. :)

6 years ago
Kim Wong

Thks both. Need some time to digest

6 years ago

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