125x5=625
625x5=3125
3125x5=15625
15625x5=78125
78125x5=390625
390625x5=1953125
1953125×5=9765625
9765625x5=48828125
48828125x5=244140625
244140625x5=1220703125
1220703125×5=6103515625
6103515625×5=30517578125
(se inmultesc cu 5)
Răspuns: Cel de-al 10-le-a termen este 30517578125
