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completati cu nr prime :

26=?+? 34=?+? 99=?+?
17=?+? 10=?+? 46=?x?
187=?x? 53=?+?+?


Răspuns :

26 = 3+23 = 13+13 = 7+19= ...
34 = 17+17 = 11+13 = 7+17=...
99 = 2+97 = ...
10 =5+5 = 3+7 = ...
46 = 2*23
187 = 11*17
53 = 7+23+23