Q&A - P3 Math

[angel]

PapayaDad:

bbc:

Jeric had 45 marbles more than Mark. After Jeric lost 75 marbles, Mark had thrice as many marbles as what Jeric had left. How many marbles did Jeric have at first?

In the end :

M:UUU
J:U

at first (j not yet lost 75)

M:UUU
J:U +75 = 45 more than Mark = UUU + 45

U+75 = UUU + 45
2U = 30
U = 15

At first J have U+75 = 15 + 75 = 90
Mark have 3U = 3 x 15 = 45

Check J lost 75 = 15 ; Mark have 3 times more = 45. correct

Hi,

can you help explain using models?
This method looks like algebra.

Thank you very much.

[angel]

How many eights are there altogether in the product of 222 and 4?


1) 3
2) 8
3) 111
4) 888

[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

[tianzhu]

angel:

Hi,
can you help explain using models?

Hi

Hope this helps.

Best wishes

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

[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