math
posted by Terri .
"Find a quick and easy method to compute the sum of the first 100 counting numbers."

1+100 + 2+99 + 3+98 ......+ 50+51
= :)
Respond to this Question
Similar Questions

Math
Find a quick and easy method to compute the sum of the first 100 counting numbers. I can't use a calculator. I can't figure out an easy way. 1+2+3+4+5...........98+99+100 Carl Freidrich Gauss had no idea as to how famous his name would … 
algebra
The sum of the first n counting numbers 1 + 2 + 3 + 4 + 5 ... + n is given by S = n/2(1 + n). a) Find the sum of the numbers 14 to 40 inclusive Answer is 729. But i don't get why. Someone explain what the qestion means by "inclusive" … 
algebra
The sum of the swuares of the first n counting numbers: 1² + 2² + 3² + 4² + 5² + 6² + ... +n² is given by the formula S = n(n+1)(2n+1)  6 Find the sum of the squares of all the counting numbers between 15 and 35. … 
sum fun (math)
find a quick and easy method to compute the sum of the first 100 counting numbers (no calculators allowed) 
Math 8th grade
I NEED THESE IN ALGEBRAIC EXPRESSION!! The larger of two sums is 12 more than the smaller. Their sum is 84.Find the numbers. The sum of two numbers is 45. The first is 9 less than the second.Find the numbers. The second of two numbers … 
math
The sum of the first 5 natural numbers is 15 or (5)(6)/2. The sum of the first 21 natural numbers is 231=(21)(22)/2, and the sum of the first 30 numbers is 465. Use inductive reasoning to derive the formula for the sum of the first … 
Math 130
Sum the first two odd numbers, then the first three, the first four, and so on. From these observations could you guess the sum of the first 100 odd numbers? 
Math
1.(A)(i)Show that 2+4+6+8+..+2n=n(n+1). (ii)Find the sum of the first 200 even numbers. (iii)Find the sum of the first 200 odd numbers. (B)(i)Use the formula at the beginning of the question to find the sum of the first 2n natural … 
Counting and Probability
What is the difference between the sum of the first 400 even counting numbers and the sum of the first 400 odd counting numbers? 
Math
1. If the product of 5 and the sum of 10 and a certain number is equal to 15, what is the number?