Đúng, 0 + 14 = 14, 6 + 1 = 7, 1 + 19 = 20, 0 + 5 = 5, 1 + 11 = 12, 1 + 5 = 6, 1 + 16 = 17, 11 + 9 = 20, Sai, 18 + 1 = 4, 16 + 2 = 3, 9 + 2 = 2, 11 + 12 = 15, 13 + 1 = 1, 8 + 4 = 10, 11 + 3 = 10

Leaderboard

Visual style

Options

Switch template

Continue editing: ?