Răspuns :
3 x 12 - 3 x 2 = 3 x (12 - 2) = 3 x 10 = 30
5 x 18 + 5 x 2 = 5 x (18 + 2) = 5 x 20 = 100
14 x 11 + 23 x 11 - 11 x 13 = 11 x (14 + 23 - 13) = 11 x 24 = 264
3 x 12 - 3 x 2 = 3 x (12 - 2) = 3 x 10 = 30
5 x 18 + 5 x 2 = 5 x (18 + 2) = 5 x 20 = 100
14 x 11 + 23 x 11 - 11 x 13 = 11 x (14 + 23 - 13) = 11 x 24 = 264