iMath | Community

Lee Yuet Meng

Asked 9 years ago

SG Primary 4 Number and Algebra

Anyone can help? Thanks in advance.

Replies 5

Choy Ban Heng

I used the same method as the one below. Hope it helps

6 years ago

Vera Koh

6 years ago

Lee Yuet Meng

Thanks, Choy Ban Heng!

6 years ago

Lee Yuet Meng

Thank you, Vera Koh

6 years ago

Adrian Ng

6 years ago

Ow Yong

Asked 9 years ago

Thanks for adding me

Replies 0

Michael Tan

Asked 9 years ago

SG Primary 5 Measurement

Hi, Anyone can solve??? Thanks!

Replies 12

Pieter Cronje

6 years ago

Thit Mon Mon Win

$0.50 = 1 u $0.20 = 1 u + 6 ($0.50 x 1 u) - $0.20( 1 u +6) = $ 2.70 u = 13 13 x 0.50 = 6.50

6 years ago

Thit Mon Mon Win

$0.50 = 1 u $0.20 = 1 u + 6 ($0.50 x 1 u) - $0.20( 1 u +6) = $ 2.70 u = 13 a) 13 x 0.5 = $6.50 b) 13+6= 19

6 years ago

Michael Tan

Thanks All :)

6 years ago

Vera Koh

sorry for the "wordy" explanation. thought it may be clearer with the words.

6 years ago

Michael Tan

Thank U :)

6 years ago

Mohi Uddin Ahmed

Handwriting looks great too!

6 years ago

Choy Ban Heng

Here's another solution:

6 years ago

Vera Koh

Choy Ban Heng, $1.20 for Meimei is only 4x 30¢.. (even though it is 6x 20¢ coins for Sarah). so, number of coins Meimei had should be 9 + 4 = 13. this is a good model to see the 9x 30, but may result in careless mistake when comparing the $1.20 part cos the "u" for 20 is not the same length as the "u" for 30. :)

6 years ago

Choy Ban Heng

Here's the updated one. Thank you Vera Koh for pointing out the careless mistake. I think the problem could have been overcome if I have checked my typing and calculations.

6 years ago

Michael Tan

Thank you for your Diagram method :)

6 years ago

Adrian Ng

6 years ago

Winnie Win

Asked 9 years ago

SG Primary 6 Number and Algebra

Replies 3

Pieter Cronje

You can see patches in the drawing ... Little humps....Count the blotches in the shaded area.( about 38) Then gues about the same space that is equal to the non shaded and count the blotches...(about 9) 38/(38+9)=0.80 this x 100 gives about 80%

6 years ago