Gauss method for addition (beta)

Complete the following based on Gauss's method of pairing numbers, then multiplying by the number of pairs. See techniques for adding 100 numbers for more information.

Practice

Compute:

Sum of pairs?

How many numbers?

How many pairs?

Total sum? × =

 

Create your own!

Input numbers to create your own problem.

Compute: + + + … + + + =