SG
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Primary 4
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Number and Algebra

Making it visual...

Replies
8

Judy Low

Hi Adrian, thanks!
May I ask why is 1u + 200 +144? This is the part which I am confused with.

2 years ago

Adrian Ng

Kate (after) is 1u + 200. And when you work backwards, you have to add 144 to get Kate(at first).

2 years ago

Judy Low

I thought Louise is the one + 200.
Sorry. A little mental block here. ๐ฅ

2 years ago

Adrian Ng

Better now?

2 years ago

Judy Low

Let me digest first. Let you know later. ๐

2 years ago

Judy Low

Hi Adrian, i understand better with Yueh Mei 's model. But really appreciate everyone's help. I foresee tough coaching route for me. But am glad I know where I can seek help now. ๐

2 years ago

Adrian Ng

Judy Low FYI, I let Louise (at first) be 1u to start of with.

2 years ago

Adrian Ng

An alternative...

2 years ago

Judy Low

Asked 5 years ago

SG
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Primary 4
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Number and Algebra

Gotten a little confused. Can someone help? Thanks.

Replies
7

Amaline Yang

2124-144+200=2180
2180รท2=1090
1090+144=1234

2 years ago

BA Poh Ann

2 years ago

Judy Low

Thanks, everyone.
BA Poh Ann, your model is very helpful. I can understand easily now. Thanks!

2 years ago

Lucie Ng

2 years ago

BA Poh Ann

Judy Low, you're welcome! :)

2 years ago

Yueh Mei Liu

2 years ago

Judy Low

Thanks everyone for your help. I really appreciate it.

2 years ago

Adrian Ng

Asked 5 years ago

SG
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Primary 6
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Number and Algebra

Making it visual...

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0

Sherleen Ee

Asked 5 years ago

SG
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Primary 6
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Number and Algebra

Can someone help me to solve this? Thanks

Replies
2

Meng Khim Goh

A:D = 2:3
A:(B+C) = 1:2 = 2:4
Therefore, (B+C):D = 4:3
C:(B+D) = 1:3
To make the total units of B+C+D to be equal,
(B+C):D = 16:12
C:(B+D) = 7:21
Therefore, B:C:D = 9:7:12
Since A:(B+C) = 1:2 and (B+C)=16
A:B:C:D = 8:9:7:12 (ans)

2 years ago

Sherleen Ee

Thanks Goh Meng Khim for helping

2 years ago

Adrian Ng

Asked 5 years ago

SG
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Primary 6
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Number and Algebra