Q&A - P4 Math

[corneyAmber]

Michell0328:

Hi,I have lot of question to solve, can you help me?? :scratchhead:

Q1)A piece of cloth was 4.5m long.2.35m of the cloth were used to sew a dress.How many metres of cloth were left??

Q2)Mrs Lee drove from school to her home which was 8.7km away.After driving 3.75km,she stopped at a supermarket along the way.How much further did she have to drive before she reached her home?

3)Sulin bought a skirt for $25.90 and a blouse for $19.50. She paid the cashier $50.How much change did she receive?

Hi, are you having difficulty handling decimal numbers or are you having difficulty completing your work because too many sums to do?

The above questions only involved operations like + and -

[kiasuMay11]

ksi:

Michell0328:

Hi,I have lot of question to solve, can you help me?? :scratchhead:

Q1)A piece of cloth was 4.5m long.2.35m of the cloth were used to sew a dress.How many metres of cloth were left??

Q2)Mrs Lee drove from school to her home which was 8.7km away.After driving 3.75km,she stopped at a supermarket along the way.How much further did she have to drive before she reached her home?

3)Sulin bought a skirt for $25.90 and a blouse for $19.50. She paid the cashier $50.How much change did she receive?

Hi, are you having difficulty handling decimal numbers or are you having difficulty completing your work because too many sums to do?

The above questions only involved operations like + and -

question seem to be for P1....

[Michaelia0816]

kiasuMay11:

ksi:

[quote=\"Michell0328\"]Hi,I have lot of question to solve, can you help me?? :scratchhead:

Q1)A piece of cloth was 4.5m long.2.35m of the cloth were used to sew a dress.How many metres of cloth were left??

Q2)Mrs Lee drove from school to her home which was 8.7km away.After driving 3.75km,she stopped at a supermarket along the way.How much further did she have to drive before she reached her home?

3)Sulin bought a skirt for $25.90 and a blouse for $19.50. She paid the cashier $50.How much change did she receive?

Hi, are you having difficulty handling decimal numbers or are you having difficulty completing your work because too many sums to do?

The above questions only involved operations like + and -

question seem to be for P1....[/quote]Yes, it surely looked like P1, anyway, I already given him some clues!

[Jamesbond]

http://i46.tinypic.com/351d380.jpg\">

Pl help me solve this.

[Jamesbond]

http://i46.tinypic.com/2ekhl35.jpg\">

I donno how to solve this....

[MathIzzzFun]

Jamesbond:

http://i46.tinypic.com/2ekhl35.jpg\">

I donno how to solve this....

Hi
I presume P is top left corner, Q is top right corner

Perimeter of PQRS --> 6 units
PS+PQ --> 3 units
PS -> 1/6 of perimeter of PQRS = 1 unit --> 6 cm
PQ --> 2 unit --- 12 cm


perimeter of shaded area
= perimeter of the rectangle PQRS
= 2 x (6 + 12) cm
= 36 cm

I think you can continue from here...

cheers.

[Jamesbond]

MathIzzzFun:

Jamesbond:

http://i46.tinypic.com/2ekhl35.jpg\">

I donno how to solve this....

Hi
I presume P is top left corner, Q is top right corner

Perimeter of PQRS --> 6 units
PS+PQ --> 3 units
PS -> 1/6 of perimeter of PQRS = 1 unit --> 6 cm
PQ --> 2 unit --- 12 cm


perimeter of shaded area
= perimeter of the rectangle PQRS
= 2 x (6 + 12) cm
= 36 cm

I think you can continue from here...

cheers.

Thank you very much for ur help.....Can u help me do the previous sum which I have posted....Thanks in advance.

[Jamesbond]

http://i47.tinypic.com/2cni51c.jpg\">

Pl help.

[kiasuMay11]

Jamesbond:

http://i47.tinypic.com/2cni51c.jpg\">

Pl help.

put \"o\" at center of picture. Imagine u move ZOY and XOY to fill up ZPW and WQX respectively. That will fill up the top half of square. Thus,

1/2 of PZ = 6
PQ = 12

Area = 12*6 = 72

[Jamesbond]

kiasuMay11:

Jamesbond:

http://i47.tinypic.com/2cni51c.jpg\">

Pl help.

put \"o\" at center of picture. Imagine u move ZOY and XOY to fill up ZPW and WQX respectively. That will fill up the top half of square. Thus,

1/2 of PZ = 6
PQ = 12

Area = 12*6 = 72

Fabulous....Thank you....