Q&A - P4 Math

[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

[tianzhu]

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

Hi

32 apples + 9 oranges ------ 19.6

12 apples + 24 oranges ------ 15.6
(divide by 12)
1 apple + 2 oranges ------- 1.3

Make the number of apples the same.
(x32)
32 apples + 64 oranges ------- 41.6

(minus)

32 apples + 9 oranges ------ 19.6

55 oranges ------- 22
1 orange ------- 0.4

1 orange ------- 40 cents
1 apple ------- 50 cents

Number of apples ------- 60
Number of oranges ------- 75

Best wishes

[Taurus]

Hi,


Kindly help to solve these 2 qns :

1. Siti, Rahmesh and Peter had 528 stickers at first. Siti bought another 32 stickers, Ramesh gave 1/5 of his stickers away and Peter was given as many stickers as he had at first by his father. In the end, all three of them had equal number of stickers. Find the number of stickers Siti had at first.

2. Siti had 6 times as many apples as David at first. Siti had given 450 apples to David, they had an equal number of apples.
A) Find the number of apples David had at first.
B) David gave away some apples and had half the number of apples Siti had. How many apples did David give away?

Thanks.

[kwcllf]

Taurus:

Hi,


Kindly help to solve these 2 qns :

1. Siti, Rahmesh and Peter had 528 stickers at first. Siti bought another 32 stickers, Ramesh gave 1/5 of his stickers away and Peter was given as many stickers as he had at first by his father. In the end, all three of them had equal number of stickers. Find the number of stickers Siti had at first.

2. Siti had 6 times as many apples as David at first. Siti had given 450 apples to David, they had an equal number of apples.
A) Find the number of apples David had at first.
B) David gave away some apples and had half the number of apples Siti had. How many apples did David give away?

Thanks.

It was posted before. But there is a mistake. It should be Siti bought 33 stickers instead of 32 stickers.

Change 32 to 33, and you’ll get Siti ----- 171 stickers@first.

Due to time constraints, I’ll not draw the MD, just some pointers

In the end

Siti ------- 4u

Ramesh ------ 4u

Peter ------ 4u

At first

Siti ------- 4u – 33

Ramesh ------ 5u

Peter ------ 2u

11u ------ 561

1u ------ 51

You may continue from here.

[Taurus]

kwcllf:

Taurus:

Hi,


Kindly help to solve these 2 qns :

1. Siti, Rahmesh and Peter had 528 stickers at first. Siti bought another 32 stickers, Ramesh gave 1/5 of his stickers away and Peter was given as many stickers as he had at first by his father. In the end, all three of them had equal number of stickers. Find the number of stickers Siti had at first.

2. Siti had 6 times as many apples as David at first. Siti had given 450 apples to David, they had an equal number of apples.
A) Find the number of apples David had at first.
B) David gave away some apples and had half the number of apples Siti had. How many apples did David give away?

Thanks.

It was posted before. But there is a mistake. It should be Siti bought 33 stickers instead of 32 stickers.

Change 32 to 33, and you’ll get Siti ----- 171 stickers@first.

Due to time constraints, I’ll not draw the MD, just some pointers

In the end

Siti ------- 4u

Ramesh ------ 4u

Peter ------ 4u

At first

Siti ------- 4u – 33

Ramesh ------ 5u

Peter ------ 2u

11u ------ 561

1u ------ 51

You may continue from here.

Thanks for your help.