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 Post subject: Learning together book 1 vrPosted: Fri Aug 03, 2012 6:37 pm

Joined: Sat Sep 18, 2010 6:49 pm
Posts: 40
Help pls;

216, 125, 64, 27, ?

Thank u

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 Post subject: Re: Learning together book 1 vrPosted: Fri Aug 03, 2012 6:42 pm

Joined: Mon Feb 22, 2010 3:50 pm
Posts: 223
Looks like cubed numbers to me:
6x6x6=216
5x5x5=125
4x4x4=64
3x3x3=27
2x2x2=8

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 Post subject: Re: Learning together book 1 vrPosted: Fri Aug 03, 2012 6:52 pm

Joined: Thu Jun 14, 2012 10:28 am
Posts: 82
Ideally, I would breakdown the first number

216
2 x 108
2 x 2 x 54
2 x 2 x 2 x 27
2 x 2 x 2 x 3 x 9
2 x 2 x 2 x 3 x 3 x 3

You ought to be able to see that this is 6 cubed. Then try and check if the others are cubes of any numbers. Hope this helps.
T

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 Post subject: Re: Learning together book 1 vrPosted: Fri Aug 03, 2012 7:59 pm

Joined: Sat Sep 18, 2010 6:49 pm
Posts: 40
Thank u! Answer is 8!

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