Properties of numbers

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gmatplayer: Master | Next Rank: 500 Posts; Posts: 103; Joined: Fri May 22, 2009 3:56 am; Thanked: 4 times; GMAT Score:470

by gmatplayer » Wed Jun 17, 2009 7:37 am

Although I am OK in Q (Thats what I think since my Q~48-49), the mistakes I make were mostly in "Properties of number" problems (Number series, prime numbers, prime factors, largest prime factor...etc).

I have been constantly monitoring my incorrect area and I found:
Overall 40% of my incorrect problems belong to this type only.

I quickly understand it when I read the answer explanation, problem lies mostly in "How to approach"

Is there a quick guide or some stuff that I can read to improve? I can surely improve my score by 1-2 points if I can work on this area.

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Source: Beat The GMAT — Problem Solving | Wed Jun 17, 2009 7:37 am

ssmiles08: Master | Next Rank: 500 Posts; Posts: 472; Joined: Sun Mar 29, 2009 6:54 pm; Thanked: 56 times

by ssmiles08 » Wed Jun 17, 2009 8:31 am

Get yourself the Number properties guide by Manhattan GMAT. Hopefully that'll do the trick

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jimmynicho: Junior | Next Rank: 30 Posts; Posts: 11; Joined: Wed May 27, 2009 7:52 am

by jimmynicho » Wed Jun 17, 2009 6:29 pm

I have the same problem, does anyone know if they only sell them at the Mgmat site or also at bookstores?

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raleigh: Master | Next Rank: 500 Posts; Posts: 103; Joined: Mon May 18, 2009 9:47 am; Thanked: 19 times

by raleigh » Wed Jun 17, 2009 8:54 pm

I'm pretty certain the latest edition is only available on the MGMAT site. The number properties book is good. I was in a similar position. 3 chapters in it helped me out a lot.

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jimmynicho: Junior | Next Rank: 30 Posts; Posts: 11; Joined: Wed May 27, 2009 7:52 am

by jimmynicho » Fri Jun 19, 2009 3:01 am

I ordered the mgmat series yesterday. I will let you guys know how it is

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