Q&A - PSLE Math

[MathIzzzFun]

peggy:

MathIzzFun,


Got it !! Thanks.....

regards,
Peggy

Hi peggy,

avec plaisir

cheers.

[MathIzzzFun]

shurley197323:

Please help

1) Susie bought 5 kg of flour and 4 kg of sugar for $14.80. If 3/4 kg of flour coast as much as 3/5kg of sugar, find the cost of 1 kg of sugar ?

2)The no of marbles Aaron has is 8 more than 4 times that of Bala's. The no of marbles that Najib has is 5 more than 1/8 of Aaron's. Najib has 9 fewer marbles than Bala. How many marbles do they have altogether.

Hi


http://postimage.org/image/2ubnvmuw4/

cheers.

[tianzhu]

shurley197323:

Hi.Tianzhu.As for Q2, I got the answers is 179 marbles too . Thanks again

Hi shurley197323

You're welcome.

Great, you solved the question.

Best wishes.

[shurley197323]

MathIzzzFun:

shurley197323:

Please help

1) Susie bought 5 kg of flour and 4 kg of sugar for $14.80. If 3/4 kg of flour coast as much as 3/5kg of sugar, find the cost of 1 kg of sugar ?

2)The no of marbles Aaron has is 8 more than 4 times that of Bala's. The no of marbles that Najib has is 5 more than 1/8 of Aaron's. Najib has 9 fewer marbles than Bala. How many marbles do they have altogether.

Hi


http://postimage.org/image/2ubnvmuw4/

cheers.

Hi. MathIzzzFun

Thanks for you model.

[MathIzzzFun]

shurley197323:

MathIzzzFun:

[quote=\"shurley197323\"]Please help

1) Susie bought 5 kg of flour and 4 kg of sugar for $14.80. If 3/4 kg of flour coast as much as 3/5kg of sugar, find the cost of 1 kg of sugar ?

2)The no of marbles Aaron has is 8 more than 4 times that of Bala's. The no of marbles that Najib has is 5 more than 1/8 of Aaron's. Najib has 9 fewer marbles than Bala. How many marbles do they have altogether.

Hi


http://postimage.org/image/2ubnvmuw4/

cheers.

Hi. MathIzzzFun

Thanks for you model.[/quote]

Hi shurley197323

you are most welcome :lol:

cheers.

[ozora]

MathIzzzFun:

shurley197323:

[quote=\"MathIzzzFun\"]
Hi


http://postimage.org/image/2ubnvmuw4/

cheers.

[/quote]
Sorry MathIzzzFun
can highlight me why there is addition of 1 to be in 1/8 of Aaron?
My step is 9+5 which is wrong.

[MathIzzzFun]

ozora:

MathIzzzFun:

[quote=\"shurley197323\"]

Sorry MathIzzzFun
can highlight me why there is addition of 1 to be in 1/8 of Aaron?
My step is 9+5 which is wrong.

[/quote]Hi ozora,

Aaron had 8 units + 8, so 1/8 = 1/8 of 8 units + 1/8 of 8 = 1 unit + 1

cheers

[Hifive]

Hi


Need help with this question:

Karen made 120 more cookies than apple pies. After selling one third of the cookies and 25% of the apple pies, she had 70 more apple pies than cookies. What is the total number of cookies and apple pies that Karen made?

Thanks!

[tianzhu]

Hifive:

Karen made 120 more cookies than apple pies. After selling one third of the cookies and 25% of the apple pies, she had 70 more apple pies than cookies. What is the total number of cookies and apple pies that Karen made?

Hi

You may use MD to solve this question.

Some quick pointers for the MD.If needed, I’ll draw out the MD at a later time.

Cookies ----- 12 units + 120
Apple pies ------ 12 units

Cookies sold ------- 4 units + 40
Apple pies sold ------- 3 units

Cookies left ------ 8 units + 80
Apple pies left ------- 9 units

9 units ------- 8 units + 80 + 70
1 unit ------- 150

24 units -------- 3600
Total number -------- 3600+120 -------3720

Best wishes

[Lynn2]

Hello all,


Can someone pls help this question.Have tried to teach dd to use set method to do this question, but always ended up using guess and check which is very time consuming.She cannot understand the explanation even I tried .

Any kind soul can help?
Here it goes:

1 Box A contains 50 cent coins and Box B contains $1 coins.Box A contains 17 more coins than Box B.The amount of money in Box A is $15.50 less than in Box B.Find the total amount of money in the boxes

Thanks and sure hope dd can clear this type of question.

Cheers
Lynn2