Q&A - P4 Math

[Happystar328]

Anyone know how to solve this question ?


Angeline and Betty hv a total of 75hairclips.
Betty and Corrine hv a total of 66hairclisp.
Angeline and Corrine hv a total of 61hairclips.
Find the number of hairclips Angeline had.

[PapayaDad]

A+B=75


C+B=66
C+A=61
Draw the above ; should be able to see B is 5 more than A, ie B=5+A

A+B=75
A+(5+A)=75
2A=70
A=35

[Happystar328]

Thank you PapayaDad for the answer

[Happystar328]

How to solve this problem sum ?


John has some five cent and twenty cent coins in his coin box.
There is a total of 50coins.
The value of all the coins is $8.50.
How many five cent coins does he have ?

[PapayaDad]

Assume 25 five cent and 25 twenty cents

125 + 500 = 625… too little, need to increase 225

If we increase 1 twenty cents, we need to reduce 1 five cents… net result is increase 15.

225/15 = 15

So we need to increase 15 twenty cents from the initial assumption (25)
25+15=40

There are 40 twenty cents and 10 five cents
Check
40 x 20 = 800
10 x 5 = 50
Total = 850…correct

[cftan]

Hi,


I need help.

Question : STRAW x 4 = WARTS
What digits do S,T,R,A and W represent?

[tianzhu]

cftan:

Hi,


I need help.

Question : STRAW x 4 = WARTS
What digits do S,T,R,A and W represent?

Hi

It doesn’t look like a P4 exam type of question.

You may follow this link if you are keen to explore further.

http://www.algebra.com/algebra/homework/logarithm/logarithm.faq.question.403660.html

Best wishes

[cftan]

tianzhu:

cftan:

Hi,


I need help.

Question : STRAW x 4 = WARTS
What digits do S,T,R,A and W represent?

Hi

It doesn’t look like a P4 exam type of question.

You may follow this link if you are keen to explore further.

http://www.algebra.com/algebra/homework/logarithm/logarithm.faq.question.403660.html

Best wishes

Hi Tianzhu,

This is a Olympia question from p4.
Thank You for the link.

Rgds.

[cindyll]

cftan:

tianzhu:

[quote=\"cftan\"]Hi,


I need help.

Question : STRAW x 4 = WARTS
What digits do S,T,R,A and W represent?

Hi

It doesn’t look like a P4 exam type of question.

You may follow this link if you are keen to explore further.

http://www.algebra.com/algebra/homework/logarithm/logarithm.faq.question.403660.html

Best wishes

Hi Tianzhu,

This is a Olympia question from p4.
Thank You for the link.

Rgds.[/quote]I wonder how many P4 students can solve this question. Chim manz!!

[Cher2101]

Can anyone help me to explain how to teach my kid on this question:


Mrs Goh had a sum of money . If she bought 32 apples and 9 oranges, she would have $10.40 left. If she bought 12 apples and 24 oranges , she would have $14.40 left. Given that she had $30, how many apples and oranges could she buy?

Thanks and regards