Răspunsuri

2014-11-07T12:13:39+02:00
I.  9999=(3334-1)+(3345-2)+(3346-3) este o varianta

II. 9999=9000+900+99
   9999=(9123-123)+(935-35)+(100-1)

Sunt foarte multe variante

1 5 1
2014-11-07T12:37:54+02:00
9999,8888,7777,6666,5555,4444,3333,2222,1111 etc.