Q&A - P3 Math

[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.

[angel]

Hi Tianzhu,


I got it now. Thank you very much.
I have one more question which I need you to explain your answer. Can you help me?

How many eights are there altogether in the product of 222 and 4?
1)3
2)8
3)111
4)888

Thank you so much for your kind help.

[PapayaDad]

Product of 222 and 4 = 222 x 4 = 888


How many 8s are there means 888 / 8 = 111

hope it helps…

[tianzhu]

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.

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8256/8639626358_d56389ea69_z.jpg\">

[forestcadee]

Hi, needs help to explain segment to my dd. Had tried to search on website for information but no avail. Anyone has reference for me. Thanks.

[HAPPYH]

tianzhu:

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.

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8256/8639626358_d56389ea69_z.jpg\">

Thank you for the nice model. Greatly appreciate it.

[vaun]

Hi,

I have been able to help my girl’s math till I hit this question on multiplication.

If (3) = 3 x 3 and (4) = 4 x 4, then,
(5) x (2) = ( )

Please note that the ( ) is actually a square box. I do not know if the box is significant or not and can’t keep wonder if this is a IQ question or printing error.

Anyone have any idea ? This is one of the school worksheet in multipication.
Thanks

[PapayaDad]

(5) = 5 x 5 = 25

(2) = 2 x 2 = 4
(5) x (2) = 25 x 4 = 100

or may be

(5) x (2) = (10) = 10 x 10 = 100

my guess