Q&A - P4 Math

[24hr-mum]

stimes i find it ridiculous that sch are setting questions that the child cant do and even parents stimes are intimidated…, and its just primary questions. sigh…

[MathIzzzFun]

24hr-mum:

MathIzzzFun, that's a great way. How did u get the idea of duplicating the 4book+3pen equation?

Using same gap concept, 5pens 3books -- gap of 2, 4 books 3pens -- gap of 1, so double 4 books +3pens to get gap of 2.

cheers.

[PiggyLalala]

MathIzzzFun:

24hr-mum:

MathIzzzFun, that's a great way. How did u get the idea of duplicating the 4book+3pen equation?

Using same gap concept, 5pens 3books -- gap of 2, 4 books 3pens -- gap of 1, so double 4 books +3pens to get gap of 2.

cheers.

:thankyou: learn something new again.
U are a great Maths teacher.

[Jamesbond]

http://i50.tinypic.com/wu5dog.jpg\">


Pl help.... :scared:

[Jamesbond]

PiggyLalala:

MathIzzzFun:

[quote=\"24hr-mum\"]MathIzzzFun, that's a great way. How did u get the idea of duplicating the 4book+3pen equation?

Using same gap concept, 5pens 3books -- gap of 2, 4 books 3pens -- gap of 1, so double 4 books +3pens to get gap of 2.

cheers.

:thankyou: learn something new again.
U are a great Maths teacher. :)[/quote]MathIzzzFun U r really great...I did learn this method now.... :rahrah:

[MathIzzzFun]

Jamesbond:

http://i50.tinypic.com/wu5dog.jpg\">


Pl help.... :scared:

Hi

How many ways can the 18 squares be cut from the \"unshaded\" part ?
--> 1 row x 18 squares
--> 2 rows x 9 squares
--> 3 rows x 6 squares

from here, can you figure out the solution?

cheers.

[24hr-mum]

how to do:

ray n serene hv total of $1183.
serene n tim hv total of $1124.
ray n tim hv total of $961.
how much does tim hv?

[CMF]

24hr-mum:

how to do:

ray n serene hv total of $1183.
serene n tim hv total of $1124.
ray n tim hv total of $961.
how much does tim hv?

R+S = 1183
S+T= 1124
R+T=961

(R+S)+(S+T)=1183+1124
2S+(R+T)=2307
2S+961=2307
2S=1346
S=673

S+T=1124
T=1124-673
T=451

[HAPPYH]

24hr-mum:

how to do:

ray n serene hv total of $1183.
serene n tim hv total of $1124.
ray n tim hv total of $961.
how much does tim hv?

R + S = 1183
S + T = 1124
R + T = 961

2R + 2S + 2T = 1183 + 1124 + 961 = 3268

R + S + T = 3268/2 = 1634

R + S + T = 1634

1183 + T = 1634
T = 1634 - 1183 = $451.

[24hr-mum]

thanks. its like algebra and simultaneous equation.

the problem is after teaching my gal, the nx time same qn appears, she will hv forgotten the mtd. teaching the kid how to recognise the type of problem sum and decide wat mthd to use, if the most difficult part.