a) 30997, 30998, 30999, 31.000, 31.001, 31.002, 31.003, 31.004, 31.005=9 numere altfel se calculeaza ultimul-primul + 1 = 31005-30997+1= 8+1=9
In mod analog avem
b) 86574-86568+1 = 6+1= 7 numere, incepand cu 86568
c) 100006-99996+1= 10+1= 11 numere
d) 1000000-999992+1= 8+1=9 numere
Succes! Astept coronita!