Tutor MathsGuru: Ask me for your burning Maths questions!

[markfch]

Hi gurus,


Another qn that stumped me. I don’t know how to teach this one below. Thanks very much.

Joanne has 540 stamps. She has 194 fewer stams than Bryan. How many stamps must Bryan give her so that she will have 10 more stamps than Bryan?

[Almighty]

Hi all,

Can anyone help me on this probelm..Is the answer 126cm2

http://www.postimage.org/image.php?v=aV6VnHi

[mrswongtuition]

Tang, you are right! I typed too fast, did not check

[Dharma]

Almighty:

Hi all,

Can anyone help me on this probelm..Is the answer 126cm2

http://www.postimage.org/image.php?v=aV6VnHi

Correct.

[maths6a]

216 IS CORRECT

[maths6a]

super star:

HI MATHS GURU

Please help me with this problem.At present,ronald is 3 times as old as his sister.In 22 years time,ronald's age will be 19 years less than twice his sister's age.how old is ronald?

RONALD IS 9 YRS OLD

[maths6a]

super star:

Please help me with tis problem

Tom &jerry went shopping with a total of $198.Tom had $ 10 more than jerry .Tom spent 25% as much money as jerry.after which,he had twice as much money left as jerry.
(a)how much money did tom bring for shopping?
(B)how much money had tom left after shopping?

(198 + 10)/2 = 104 Tom (a)
198 - 104 = 94 for Jerry

T 104 - 1 unit ---- 2
J 94 - 4 units -----1

2(94 - 4units) ------104 - 1 unit
188 - 8units ---- 104 - 1 unit
7 units ---- 84
1 unit ---- 12 spent by tom
104 - 12 = 92 (b)

[kancheongmum]

Dharma:

Almighty:

Hi all,

Can anyone help me on this probelm..Is the answer 126cm2

http://www.postimage.org/image.php?v=aV6VnHi

Correct.

Hi Dharma how do you get the answer 126 cm2. Looking at the fig I think is 120 cm2. Pls adv if I am wrong

[maths6a]

super star:

HI MATHS GURU

please help me.The mass of a box containing 3 files was 10.2kg.Later,Ali added 2 more files & 3 books into the box and the mass of the box and its contents became 19 kg .if the mas of one file was four times the mass of a book,find the mass of the box when empty (leave your answer in kg).

Box + 3 F = 10.2 ---- Box + 12 B =10.2 Eq 1
Box + 5 F + 3 B = 19 ---Box + 20 B + 3 B = 19 Eq 2
Eq 2 minus Eq 1 -----11 B = 8.8
1B = 0.8 kg
10.2 - 12 x 0.8 = 0.6 kg (Mass of empth box)

[kancheongmum]

Tang:

mathsguru:

[quote=\"biscuitqueen\"]Hi there, please help me solve this Maths questn for my daughter.

I have no idea how to solve. Thanx!

Mary and Ken travelled from Town A to Town B. Mary left Town A at 0915 and took 4h to reach Town B. Ken left Town A at 1000 and took 2h 45min to reach Town B. At what time did Ken pass Mary?

Hi Biscuitqueen,

Here's my solution. Hope it helps!

Cheers,
MathsGuru

http://www.postimage.org/image.php?v=gxbp40J

Hello,

I believe this is the 3rd time I am highlighting the same issue in this forum. For the benefit of those taking PSLE 2010, I will repeat it for the very last time. Please note that the below statement will be marked wrong.

10 am + 1 h 39 min = 11.39 am

You will easily lose 1 mark for mixing Time with Duration.[/quote]Hi Tang
Pls adv how should the student write the statement. My DS has been writing this way since P4 till now P6. The teachers did not mark him wrong.