Learning together book 1 vr

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maznaq
Posts: 40
Joined: Sat Sep 18, 2010 6:49 pm

Learning together book 1 vr

Post by maznaq »

Help pls;

216, 125, 64, 27, ?

Thank u
Hera
Posts: 856
Joined: Mon Feb 22, 2010 3:50 pm

Re: Learning together book 1 vr

Post by Hera »

Looks like cubed numbers to me:
6x6x6=216
5x5x5=125
4x4x4=64
3x3x3=27
2x2x2=8
Tagore
Posts: 121
Joined: Thu Jun 14, 2012 10:28 am

Re: Learning together book 1 vr

Post by Tagore »

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
maznaq
Posts: 40
Joined: Sat Sep 18, 2010 6:49 pm

Re: Learning together book 1 vr

Post by maznaq »

Thank u! Answer is 8!
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