Adrian Ng
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Fractions

Making it visual...

Replies 1
Teresa Ng

Thank u Adrain Ng

6 years ago

Teresa Ng
Asked 9 years ago

SG chevron_right Primary 4 chevron_right Fractions

Dear All Can u help with me P4 Problem sums,A Total of 620 guests are invited to a birthday party. 3/5 of the male guest is equal to 2/7 of the female guests. How many more female than male guests are there?Thanks all...

Replies 5
Soo Vei Li

Is there a typo error -- 3/5 of the male guests?

6 years ago
Soo Vei Li

You can start by drawing 2 separate bars -- the 3 units to represent the males and then the 2 units to represent the females, making those bars equal (since 3 units of the males = 2 units of the females). Then, how many more units to make the whole for the males and how many more units to make the whole for the females? How many units altogether now? These units will represent the 620 guests.

6 years ago
Teresa Ng

sori i still dont understand can show me in details as i need to explain to my kid...

6 years ago
Soo Vei Li

6 years ago
Suhailah Wahid

6 years ago

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Fractions

Making it visual...

Replies 4
Catherine Koh

Thanks Adrian!

6 years ago
Candy Chan

Hi Adrian Ng, may i ask how you get this 2u x 4? Can you explain to me? Thanks

6 years ago
Adrian Ng

I get 1u x 4 to make it equal to the 4 boxes. Can you accept this?

6 years ago
Candy Chan

Thank q, Adrian!

6 years ago

Harshisri Murugan
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Geometry

Please help me.

Replies 5
Yeo See Yeong

6 years ago
Zhong Shu Hao

btw. The "90 - x" is obtained using (base angles of isos triangle)

6 years ago
Harshisri Murugan

Thank you very much.

6 years ago
Raymond Ng

Or x + x + 2x = 180 x = 45

6 years ago
Soo Vei Li

Harshisri Murugan, some feedback to help you: using the info given about parallel lines, we can conclude that the base angle (left one) of the triangle is also x (alternate angles). And because two sides of the triangle are the radii of the circle and therefore equal, the other base angle of the triangle is also x. We can't assume that the triangle is equilateral as you have done at the start. It is an isosceles triangle because of the radius. That's why x+x+2x=180.

6 years ago

Harshisri Murugan
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Geometry

Please help me.

Replies 3
Zhong Shu Hao

6 years ago
Harshisri Murugan

Thank you so much.

6 years ago
Soo Vei Li

Harshisri Murugan, for such questions, it is useful to add to notation for parallel lines onto the diagram and then use the properties of parallel lines and the angles given to see what other angles can also be known. With parallel lines, learn to visualise the 'z', the 'f' shapes, etc for alternate angles and corresponding angles.

6 years ago

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