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 Post subject: Help
PostPosted: Thu May 24, 2012 8:53 pm 
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Joined: Sat Sep 18, 2010 5:49 pm
Posts: 40
Hi guys I can't figure out the following 2 question;

(14 [15] 17)
(2 [5] 9)
(8 [?] 23)



(3 [5] 16)
(4 [10] 28)
(5 [?] 10)

Thank u!!!


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:11 pm 
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Joined: Wed Oct 12, 2011 8:34 pm
Posts: 930
14 +17 = 31 -1=30 /2 = 15
2+9=11-1=10/2=5
8+23= 31-1=30 /2 =15

I think? need a bit more time for the second one


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:17 pm 
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Joined: Sat Sep 18, 2010 5:49 pm
Posts: 40
Wow yes the answer is 15! Want to know the answer for the second one?


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:23 pm 
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Joined: Mon Aug 22, 2011 12:12 pm
Posts: 366
Is the answer to the second one 'zero'?


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:24 pm 
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Joined: Sat Sep 18, 2010 5:49 pm
Posts: 40
Yes how?


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:30 pm 
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Joined: Mon Aug 22, 2011 12:12 pm
Posts: 366
3x2 =6, 16-6 =10/2 =5, then 4x2=8, 28-8 =20/2 =10, so answer 5x2 =10, 10-10=0/2 =0


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 Post subject: Re: Help
PostPosted: Thu May 24, 2012 9:34 pm 
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Joined: Sat Sep 18, 2010 5:49 pm
Posts: 40
Thank u soo much really appreciate it!

But how could I help my daughter to attempt these questions? There's soo many ways!


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 Post subject: Re: Help
PostPosted: Thu May 31, 2012 9:30 am 
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Joined: Thu Feb 02, 2012 2:12 pm
Posts: 166
maznaq wrote:
Thank u soo much really appreciate it!

But how could I help my daughter to attempt these questions? There's soo many ways!


I worked it out as
(3 [5] 16) 3 + 5 = 8x2 = 16
(4 [10] 28) 4 + 10 = 14x2 =28
(5 [?] 10) 5 + 0 = 5x2 = 10


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 Post subject: Re: Help
PostPosted: Thu May 31, 2012 10:22 am 
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Joined: Mon Mar 15, 2010 2:45 pm
Posts: 4608
If you search patricia's posts I think she has some hints and tips for tackling this type.


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