63 : 3 = 21
66 : 3 = 22
93 : 3 = 31
96 : 3 = 32
99 : 3 = 33
______________________________________
operatiile in scris :
63 : 3 = 21
6
-----
=3
..3
----
=
____________________________________________
66 : 3 = 22 ( 3 in 6 se cuprinde de 2 ori, verific: 2 x 3 = 6 )
6
___→ scad
= 6 → ,,cobor" si cifra urmatoare 6; 3 in 6 se cuprinde de 2 ori, verific si scad
6
______
=
_______________________________
93 : 3 = 31
9
-----
=3
3
---
=
_____________________
96 : 3 = 32
9
----
=6
6
-----
=
__________________
99 : 3 = 33
9
-----
=9
9
----
=