Question

find the sum of all the natural numbers from 1 to 100

Answer 1

Helloo!!

Use the formula

Sn = n/2 * ( t1 + tn) 
Sn = 100/2 * (1+100) 
Sn = 50 * 101 = 5050 

Answer 2

1+2+3+.......+100

We can solve this by using the formula n(n+1)/2
=100(101)/2
=50*101
=5050