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"Math genius needed "
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jbug 17108 desperate attention whore postings
DAW Level: "Playboy Centerfold"

06-28-18, 05:59 PM (EST)
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"Math genius needed "

Don't tell me how to do this (I found that already). Just give me the answer! (finding out how and doing it are 2 different things)

I need to add consecutive numbers and get a sum
all numbers from 1 to 500
1
+2
+3
+4
+5
+
.
.
.
.
+500

I found that adding numbers 1 thru 100 gives me 5050.
Then I got stuck

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  Table of Contents

  Subject     Author     Message Date     ID  
 RE: Math genius needed ARnutz 06-28-18 1
   RE: Math genius needed jbug 06-28-18 2
       RE: Math genius needed ARnutz 06-30-18 5
   RE: Math genius needed cahaya 06-28-18 3
       RE: Math genius needed ARnutz 06-30-18 4
       RE: Math genius needed jbug 07-05-18 6
           RE: Math genius needed cahaya 07-10-18 7

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ARnutz 13927 desperate attention whore postings
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06-28-18, 07:38 PM (EST)
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1. "RE: Math genius needed "
125,250


A J Slice original ©2004


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jbug 17108 desperate attention whore postings
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06-28-18, 09:52 PM (EST)
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2. "RE: Math genius needed "
Awesome! thanks.
(I asked on FB but just had to find a genius here too
lurve ya
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ARnutz 13927 desperate attention whore postings
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06-30-18, 03:48 PM (EST)
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5. "RE: Math genius needed "
No problem, dahlin!
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cahaya 19720 desperate attention whore postings
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06-28-18, 10:06 PM (EST)
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3. "RE: Math genius needed "
Hey, show your work! That's what you ask your students, right?


Nutzy's trophy shop

You can almost do it in your head by adding 1+500, 2+499, 3+498, ... 250+251 (all equal 501) times 250 pairs, or 501 x 250.

To do 501 x 250 (which would be a bit more than half of 1000 x 250 or a bit more than half of 250,000), multiply 500 x 250 = 125,000 and then add another 1 x 250 for 125,250.

How's that, prof?


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ARnutz 13927 desperate attention whore postings
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06-30-18, 03:47 PM (EST)
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4. "RE: Math genius needed "
Yup, it took seconds to just do 501 x 250.

Of course, I knew you would get the answer too!


Beachy keen... thanks to Shar! *bouncy* pop by the amazing IceCat


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jbug 17108 desperate attention whore postings
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07-05-18, 12:04 PM (EST)
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6. "RE: Math genius needed "
in my head you say??????????????????????????



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cahaya 19720 desperate attention whore postings
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07-10-18, 04:02 PM (EST)
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7. "RE: Math genius needed "
Hah!

Okay, how about "in your hand" (using a calculator) instead of "in your head"?

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