Q&A - P3 Math

[angel]

tianzhu:

angel:

Hi,
can you help explain using models?

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8113/8632938389_b232d3e938_z.jpg\">

WOW! I got it instantly.

How about the other few questions? Can you kindly advice me?

You are great!

[angel]

Janelle has 14 more sticker albums than May. Trinity has five times as many sticker albums as May. If they have a total of 497 sticker albums, how many sticker albums does Janelle have?



One more:

There are 96 more paper clips in Box A than in Box B. How many paper clips must be transferred from Box A to Box B so that there are 48 more paperclips in Box A than in Box B?

[tianzhu]

angel:

Janelle has 14 more sticker albums than May. Trinity has five times as many sticker albums as May. If they have a total of 497 sticker albums, how many sticker albums does Janelle have?

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8526/8634136434_29441d6d4d_z.jpg\">

[Garfieldpal]

angel:

Janelle has 14 more sticker albums than May. Trinity has five times as many sticker albums as May. If they have a total of 497 sticker albums, how many sticker albums does Janelle have?



One more:

There are 96 more paper clips in Box A than in Box B. How many paper clips must be transferred from Box A to Box B so that there are 48 more paperclips in Box A than in Box B?

Janelle-|__|14|.................)
May-----|__|......................} Total 497
Trinity--|__|__|__|__|__|...)

497 - 14 = 483

7u --> 483

1u --> 69

69 + 14 = 83

Janelle has 83 sticker albums.

96 - 48 = 48

48 / 2 = 24

24 paperclips must be transferred from box A to B.

[angel]

Garfieldpal:

96 - 48 = 48

48 / 2 = 24

24 paperclips must be transferred from box A to B.

Why divide by 2?

Can explain with model?

[tianzhu]

angel:

Mr Nicholas stored his chocolates in 2 jars, which he labelled as Jar A and Jar B. Jar A had 88 more chocolates than Jar B. Mr Nicholas transferred some chocolates from Jar B to Jar A. After the transfer, Jar A now had 112 more chocolates than Jar B. How many chocolates did Mr Nicholas transfer from Jar B to Jar A?


1)6
2)12
3)18
4)24

Hi

The answer is (2) --- 12

Best wishes

[angel]

tianzhu:

angel:

Mr Nicholas stored his chocolates in 2 jars, which he labelled as Jar A and Jar B. Jar A had 88 more chocolates than Jar B. Mr Nicholas transferred some chocolates from Jar B to Jar A. After the transfer, Jar A now had 112 more chocolates than Jar B. How many chocolates did Mr Nicholas transfer from Jar B to Jar A?


1)6
2)12
3)18
4)24

Hi

The answer is (2) --- 12

Best wishes

Hi Tianzhu,

can you show me your workings?

I am also stuck with the previous questions. Can you help explain to me?

Thank you so much.

[PapayaDad]

At first Jar A : 88 more

End Jar A : 112 more
So the diffrence has increased by 112 - 88 = 24

If transfer 1 from B to A ; B will become 1 less and A will become 1 more ; the difference has increased by 2.

So transfer 12 from B to A ; B will become 12 less and A will become 12 more ; the difference has increased by 12.

In short, 24 needs to be divided by 2.

[tianzhu]

angel:

Hi Tianzhu,

can you show me your workings?

I am also stuck with the previous questions. Can you help explain to me?

Thank you so much.

Hi

There are two solutions in one slide.

If the image is not big enough, please let me know.

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8126/8636064789_92a59ffc9f_z.jpg\">

[Berry123]

Joe is 24 years younger than David. In 6 years’ time, David will be twice as old as Joe. How old is David now?


Can anyone help and explain using model? Thanks.