Răspuns :
S= 57+58+59+.....+100=S100-S56
S100=100*101/2=5050
S56=56*57/2=1596
5050-1596=3454
Problema se rezolvă prin suma Gauss
S100=100*101/2=5050
S56=56*57/2=1596
5050-1596=3454
Problema se rezolvă prin suma Gauss