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Calculati suma tuturor numerelor naturale pare mai mari decat 4 si mai mici decat 14.
HELP me !,PLEASE !


Răspuns :

  4 si 14 inclusiv
4+6+8+10+12+14=54

5+6+7+8+9+10+11+12+13=
=11+7+8+9+10+11+12+13=
=18+8+9+10+11+12+13=
=26+9+10+11+12+13=
=35+10+11+12+13=
=45+11+12+13=
=56+12+13=
=68+13=
=81=