Geraldine Koh
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Hi, can someone pls help? Tks in adv!

Replies 4
Zhong Shu Hao

For every 1 $10 is used, 5 $2 has to be used, hence an extra 4 notes used.

6 years ago
Zhong Shu Hao

Try solving from here

6 years ago
Raymond Ng

6 years ago
Geraldine Koh

Thank you Raymond Ng

6 years ago

Geraldine Koh
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Geometry

Hi, got stuck with this question. Can someone please help? Tks in adv!

Replies 8
Zhong Shu Hao

Can see that these 2 sides are of equal length?

6 years ago
Zhong Shu Hao

In fact, these 3 lines are all of the same length

6 years ago
Zhong Shu Hao

Having this, you should be able to solve?

6 years ago
Geraldine Koh

Thanks Zhong Shu Hao. So all isosceles triangles then right?

6 years ago
Zhong Shu Hao

yup

6 years ago
Zhong Shu Hao

But you know why they are of the same length right?

6 years ago
Geraldine Koh

Because from midpoint so radius of circle right?

6 years ago
Zhong Shu Hao

yup.

6 years ago

Angela Chee
Asked 9 years ago

SG chevron_right Primary 3 chevron_right Number and Algebra

Hi all! Can someone help me with this qns? Thanks in advance.

Replies 6
Yeo See Yeong

6 years ago
Chong Ji Lian

6 years ago
Angela Chee

Thanks all for your help.

6 years ago
Yvonne Quah Su-Sim

Hi, may i know why isnt the answer 338 (256+82)? I thought u=256 ie after Betty gave away 82. TIA for the clarification.

6 years ago
Chong Ji Lian

Betty has 256 less than Alice before she gave away 82 stickers. Your model is incorrect

6 years ago
Yvonne Quah Su-Sim

Thank you. Understand now.

6 years ago

Micheal Lim
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Fractions

Help

Replies 7
Chong Ji Lian

6 years ago
Micheal Lim

I don't understand how to get 10u-90 onward?

6 years ago
Chong Ji Lian

5x (2u -18) gives 10u -90. Cross multiply the fraction

6 years ago
Chong Ji Lian

80% is 4/5

6 years ago
BA Poh Ann

For such qn, total units remain unchanged. Before: P : A = 2 : 1 (Total units = 3) x 3 ---- P : A = 6 : 3 After: P : A = 4 : 5 (Total units = 9) 2 units = 18 1 unit = 9 9 units = 81 (Ans)

6 years ago
Micheal Lim

Thanks Ji Lian and Poh Ann.

6 years ago
BA Poh Ann

You're welcome. :)

6 years ago

Stella Lee
Asked 9 years ago

SG chevron_right chevron_right

P5 qn, pls help, thx

Replies 1
Maggie Lukes

6 years ago

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