SG
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Primary 6
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Number and Algebra
Can anyone help me with this please. Thank you.
Replies
2
BA Poh Ann
6 years ago
Peggy Zee
Thank you very much. Phew saved me
6 years ago
Chan Li Yeon
Asked 9 years ago
SG
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Primary 4
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Number and Algebra
Need help. Appreciate it.
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4
Tjew Sheng Wei
6 years ago
Stella Lee
Hope it's help
6 years ago
Tjew Sheng Wei
Solving by algebra
6 years ago
Yeo Robert
See image. So total 36.
6 years ago
Chloe Loh
Asked 9 years ago
SG
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Primary 5
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Number and Algebra
Please helpThx
Replies
13
Soo Vei Li
Chloe Loh, your diagram has represented the problem correctly.
Now consider: if you subtract 2174 from the total,what would the amount be? And what total in terms of percentage would you have w/o the 2174?
Equate those 2 quantities and work out what 22% represents.
6 years ago
Chloe Loh
Thx
6 years ago
BA Poh Ann
Is there any word after the word "of"?
"After Nora spent 22% of"
6 years ago
Chloe Loh
Her
6 years ago
Soo Vei Li
Let me know if you can't work it out and I'll show the solution...
6 years ago
Chloe Loh
Ok
6 years ago
Chloe Loh
Thx
6 years ago
BA Poh Ann
6 years ago
Chloe Loh
Thx
6 years ago
Chloe Loh
Um
Where did u get the 89 units??
6 years ago
BA Poh Ann
Nora started with a total of 50 units.
Siti had 39 units plus $2174.
6 years ago
BA Poh Ann
Your kid has made a careless mistake.
Instead of writing 78 in the box, ur kid wrote "72". Guess because of this, ur kid could not solve it. :)
6 years ago
Chloe Loh
Oh
6 years ago
Chris Chan
Asked 9 years ago
SG
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Primary 4
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Number and Algebra
Please help. I only know how to do with algebra. P4.
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8
Elaine Eo
Use a box in place of x. Draw a diagram to illustrate the relationship between the numbers so that the child understand. There's only one variable so you should be able to solve it with one equation.
6 years ago
BA Poh Ann
Saw a "short cut" method for such qn:
58 - 4 = 54
8 - 5 = 3
54 รท 3 = 18 pupils
6 years ago
Elaine Eo
My humble opinion that it's important for the child to understand the rationale of the method n not apply without understanding.
6 years ago
Elaine Eo
A diagram would be clearer to a young child. The short cut method is also derived from the equation i.e. 8x + 4 = 5x + 58.