小学一年级口算题:10以内的连加 (1)1 + 6 + 1 = (2)4 + 3 + 1 = (3)4 + 2 + 2 = (4)3 + 2 + 4 = (5)1 + 2 + 3 = (6)4 + 5 + 1 = (7)3 + 3 + 3 = (8)2 + 2 + 5 = (9)3 + 2 + 2 = (10)2 + 2 + 2 = (11)4 + 2 + 3 = (12)1 + 1 + 3 = (13)3 + 5 + 1 = (14)5 + 2 + 2 = (15)4 + 3 + 2 =