Răspuns :
1) 15.690:6 = 2.615-al doilea nr.
2)43.103-15.690-2.615=24.798-al treilea nr.
Verificare:24.798+ 2.615+ 15.690=43.103(A)
a+b+c=43103 a=15690 b=15690:6=2615 c=? 15690+2615+c=43103 18305+c=43103 c=43103-18305 c=24798 15690+2615+24798=43103