Q&A - P3 Math

[tianzhu]

yxl:

Miss Lim gives some erasers to her pupils. If she gives each pupil 6 erasers, there will be 5 left. If she gives each pupil 8 erasers, she will be short of 9. How many erasers does she have?

Hi

Look at this question from another angle, if Mrs Lim gives 2 more erasers(8-6) to her pupils, she would need (5+9) or 14 more erasers.

14/2 ------ 7
There are 7 pupils.

Number of erasers ------ (7*6) + 5 ------ 47 or (7*8) – 9 ------- 47

Best wishes

[tianzhu]

yxl:

There were 1568 pupils in the hall. After 224 girls and 1/4 of the boys left the hall, there was an equal number of boys and girls remaining in the hall How many boys were there in the hall at first?

Hi

A quick guide to draw the MD.

Draw 4 boxes to show the number of boys.
1/4 of the boys left the hall
Remaining number of boys ------- 3 boxes.

Remaining number of girls ------- 3 boxes.
At first, the number of girls ------- 3 boxes + 224

Hence, 7 units + 224 ------- 1568
1 unit ------ 192

Number of boys at first ------ 4 units ------768

Best wishes

[MathIzzzFun]

yxl:

Miss Lim gives some erasers to her pupils. If she gives each pupil 6 erasers, there will be 5 left. If she gives each pupil 8 erasers, she will be short of 9. How many erasers does she have?

Hi

A solution using MD. Hope this helps.

http://www.flickr.com/photos/62167097@N02/5661546018/in/photostream/

cheers.

[small]

MathIzzzFun:

yxl:

Miss Lim gives some erasers to her pupils. If she gives each pupil 6 erasers, there will be 5 left. If she gives each pupil 8 erasers, she will be short of 9. How many erasers does she have?

Hi

A solution using MD. Hope this helps.

http://www.flickr.com/photos/62167097@N02/5661546018/in/photostream/

cheers.

Hi,

Thanks for sharing the MD method.

[yxl]

Thanks for your help, Tianzhu :lol:

[tianzhu]

yxl:

Thanks for your help, Tianzhu :lol:

Hi

Good Morning.

You're welcome.

Best wishes

[mama_10]

appreciate if can help :?:


A, B,C & D tool turns to play badminton against one another. How many games would the 4 players play together?

:thankyou:

[mama_10]

hi tianzhu, thks !

:salute:

[tianzhu]

Hi


Draw a diagram and try to see the pattern.

Hope this helps.

Best wishes

http://farm6.static.flickr.com/5307/5668798707_dd4d6f1925_z.jpg\">

[mama_10]

tianzhu:

Hi


Draw a diagram and try to see the pattern.

Hope this helps.

Best wishes

http://farm6.static.flickr.com/5307/5668798707_dd4d6f1925_z.jpg\">

Hi Tianzhu, thanks! Its really helps! :salute: