35 : a × 6 = 42
35 : a = 42 : 6
35 : a = 7
a = 35 : 7
a = 5
_______
28 : a × 7 = 49
28 : a = 49 : 7
28 : a = 7
a = 28 : 7
a = 4
________
a × 8 : 2 = 24
a × 8 = 24 × 2
a × 8 = 48
a = 48 : 8
a = 6
________
a × 7 : 2 = 0
a × 7 = 0 × 2
a = 0 : 7
a = 0
Verific: 0 × 7 : 2 = 0 : 2 = 0
________________
38 : a = 7 rest 3
a = ( 38 - 3) : 7 → teorema impartirii cu rest
a = 35 : 7
a = 5 → impartitorul
_______
86 : a = 9 rest 5
a = ( 86 - 5 ) : 9
a = 81 : 9
a = 9 → impartitorul
____________
a : 6 = 8 rest 5
a = 8 × 6 + 5
a = 48 + 5
a = 53 → deimpartitul
Verific: 53 : 6 = 8 rest 5
_______________
a : 3 = 9 rest 1
a = 9 × 3 + 1
a = 27 + 1
a = 28 → deimpartitul
V: 28 : 3 = 9 rest 1
