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Cate numere de 4 cifre se termina cu 00? Nu imi trebuie rezolvare matematica.

Răspuns :

1000, 1100,1200,1300,1400,1500,1600,1700,1800,1900=>10 numere cu prefixul 1
2
3
4...9=>90 numere de 4 cifre care se termina in 0
1000,1100, 1200, 1300,.... 1900(10)
2000, 2100, 2200, 2300,.....2900(20)
3000, 3100, ........................3900(30)
4000, 4100,.........................4900(40)
5000,...................................5900(50)
6000,...................................6900(60)        
7000,...................................7900(70)
8000,...................................8900(80)
9000,...................................9900(90)


Raspuns final 90 de numere.
Succes!