2007-08-03 11:08:58 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Or counting numbers. Whatever the math term for 1,2,3,4 etc is.
2007-08-03 11:12:46 · update #1
I have 10 fingers
5left, 5right
10! = 55
2007-08-03 13:45:08 · update #2
1+1000 =1001
2+999 =1001
Since tere are 500 such pairs, the answer is 500*1001= 500,500.
2007-08-03 11:14:17 · answer #1 · answered by ironduke8159 7 · 4⤊ 0⤋
The formula for calculating this is (n)(n+1)/2 where n is the number you are counting up to.
So, the answer is 1000*1001/2 = 500*1001 = 500500.
Note: this formula works for any number, so for example the sum of numbers from 1 to 40 is 40*41/2 = 20*41 = 820.
2007-08-03 11:26:44 · answer #2 · answered by sharky.mark 4 · 0⤊ 0⤋
Average number multiplied by number of numbers:
(1 + 1000) * 1000 / 2
= 500 * 1001
= 500500.
2007-08-03 11:14:33 · answer #3 · answered by Anonymous · 1⤊ 0⤋
1+2+3+4..........+1000=1000*1001/2=1001000/2
=50500ANS.
formula: S=n(n+1)/2, with n=1000.
2007-08-03 11:15:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1+1000=1001
1000/2=500
500*1001=500500
2007-08-03 11:22:31 · answer #5 · answered by Cheeseman 2 · 0⤊ 0⤋
10 points! Wow! Those valuable Yahoo points! Will you really give them to somebody? You are so generous!
2007-08-03 12:10:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i dont know but can u give me the 10 points anyway?
2007-08-03 11:26:05 · answer #7 · answered by kazong y 1 · 0⤊ 0⤋
IronDuke beat me to it.
I was trying to add with my fingers.
2007-08-03 11:15:46 · answer #8 · answered by Dr D 7 · 1⤊ 1⤋