Q&A - P4 Math

[HAPPYH]

MathIzzzFun:

24hr-mum:

how to do:


A a fun fair, a bonus of 2 stickers was awarded for every 6 stickers won. Sam collected a total of 35 stickers. How many stickers did he actually win?

The model ans is 27 but it seems wrong.

Hi

use grouping concept ...

6 stickers won + 2 bonus stickers --> 8 stickers
ie for every group of 8 stickers won, there are 2 bonus stickers

35/8 = 4R3 --> 4 groups + 3 stickers
4 groups x 2 --> 8 bonus stickers
So, number of stickers actually won --> 35 - 8 = 27

cheers.

:thankyou: This grouping concept methid, looks faster for the bigger numbers. Thank you so much.

[Thein]

HAPPYH:

MathIzzzFun:

[quote=\"24hr-mum\"]how to do:


A a fun fair, a bonus of 2 stickers was awarded for every 6 stickers won. Sam collected a total of 35 stickers. How many stickers did he actually win?

The model ans is 27 but it seems wrong.

Hi

use grouping concept ...

6 stickers won + 2 bonus stickers --> 8 stickers
ie for every group of 8 stickers won, there are 2 bonus stickers

35/8 = 4R3 --> 4 groups + 3 stickers
4 groups x 2 --> 8 bonus stickers
So, number of stickers actually won --> 35 - 8 = 27

cheers.

:thankyou: This grouping concept methid, looks faster for the bigger numbers. Thank you so much.[/quote]Welcome and :thankyou:

[24hr-mum]

thanks. was wonderg how u know its 8 bonus stickers n not eg 12 bonus sticker or othr numbers. now i know.

[24hr-mum]

i guess wf experts in ksp i can avoid math tuitn for my gal.

[kiasuMay11]

24hr-mum:

i guess wf experts in ksp i can avoid math tuitn for my gal.

Well said. Very true.

[HAPPYH]

24hr-mum:

i guess wf experts in ksp i can avoid math tuitn for my gal.

Agree agree agree. Tuition centres does not really cater to our needs. They come up with standard or challenging question papers and mostly following them without giving more importance to whether the kids understand. Sigh.

[mrskoo123]

Hi need help on following qns:


Alvin paid $26 for 4 books and 3 pens.
John paid $1 less than Alvin for 3 books and 5 pens.
What was the total cost for 1 book and 1 pen?

thanks in advance

[PiggyLalala]

mrskoo123:

Hi need help on following qns:


Alvin paid $26 for 4 books and 3 pens.
John paid $1 less than Alvin for 3 books and 5 pens.
What was the total cost for 1 book and 1 pen?

thanks in advance

4 books and 3 pens - 26
3 books and 5 pens + $1 - 26
Therefore the price of 1 book is equivalent to 2 pens + $1
4 books is equivalent to 8 pens + $4
Therefore 11 pens -$26 -$4 =$22
1 pen - $2 and 1 book - $5
1 pen and 1 book cost $7

[kiasuMay11]

PiggyLalala:

mrskoo123:

Hi need help on following qns:


Alvin paid $26 for 4 books and 3 pens.
John paid $1 less than Alvin for 3 books and 5 pens.
What was the total cost for 1 book and 1 pen?

thanks in advance

4 books and 3 pens - 26
3 books and 5 pens + $1 - 26
Therefore the price of 1 book is equivalent to 2 pens + $1
4 books is equivalent to 8 pens + $4
Therefore 11 pens -$26 -$4 =$22
1 pen - $2 and 1 book - $5
1 pen and 1 book cost $7

I understand. But how to explain to a P4?

[24hr-mum]

why is it +$1 and not -$1? i thot john paid $1 less?