Question

Observa regula de formare a urmatoarelor siruri si completeaza fiecare sir cu cate patru numere.
a) 1991,1993,1995,____________________;
b)8623,8523,8423,_____________________;
c)6992,6995,6998,_____________________;
d)4700,4697,4694,_____________________;
e)3681,3677,3673,_____________________;

Answer 1

a)1991,1993,1995,1997,1999,2001,2003.
b)8623,8523,8423,8323,8223,8123,8023.
c)6992,6995,6998,7001,7004,7007,7010.
d)4700,4697,4694,4691,4588,4585,4582.
e)3681,3677,3673,3659,3655,3651,3647.