Află numerele necunoscute : a = 5
X:8 = 115 rest 6
(27 x 41): b = 9
y : (81 : 9) = 155 rest 4
(312 - 12 x 12 + 6): C = 3
623 : z = 5 rest 3
d: (726 : 3) = 6
962: w = 3 rest 2