Question

1.Scrie toate numerele de forma:
a8a6; 2b82; 3aa6; 15cc; b6b2.


2.Gaseste cel mai mare numar de forma 5a9b care sa aiba:
a) cifre diferite;
b)2 cifre identice;

Answer 1

1. 1816,2826,3836,4846,5856,6866,7876,8886,9896,
2182,2282,2382,2482,2582,2682,2782,2882,2982
3116,3226,3336,3446,3556,3666,3776,3886,3996
1511,1522,1533,1544,1555,1566,1577,1588,1599
1612,2622,3632,4642,5652,6662,7672,8682,9692

2. a) 5998

b)5999