Question

calculati suma :
1+2+3+4.....+100



prin suma lu gauss?
va rogggggg e urgeeeeeeennnnnnnnnntttttttttt

Answer 1

1+2+3+...+100=(100*101):2=50*101=5050 ;

Answer 2

1+2+3+4+.....+100=(1+100)+(2+99)+(3+98)+(4+97)+....+(45+46)=101*100/2= 10100/2=5050