calculeaza:385:17;631:13;479:21;617:13.

Răspuns :

385 : 17 = 22 rest 11
34
-----
=45
=34
------
=11



631 : 13 = 48 rest 7
52
-----
111
104
------
==7



479 : 21 = 22 rest 17
42
-----
=59
=42
-------
=17



617 : 13 = 47 rest 6
52
-----
=97
=91
------
==6