一年级数学口算20以内的连加 (1)8 + 9 + 2 = (2)2 + 2 + 14 = (3)1 + 13 + 1 = (4)6 + 3 + 1 = (5)9 + 1 + 9 = (6)2 + 4 + 3 = (7)1 + 10 + 8 = (8)2 + 6 + 7 = (9)10 + 3 + 2 = (10)6 + 3 + 8 = (11)4 + 15 + 1 = (12)10 + 1 + 5 = (13)9 + 2 + 3 = (14)1 + 14 + 3 = (15)1 + 10 + 5 = 20以内的连加参考答案 (1)8 + 9 + 2 =19 (2)2 + 2 + 14 =18 (3)1 + 13 + 1 =15 (4)6 + 3 + 1 =10 (5)9 + 1 + 9 =19 (6)2 + 4 + 3 =9 (7)1 + 10 + 8 =19 (8)2 + 6 + 7 =15 (9)10 + 3 + 2 =15 (10)6 + 3 + 8 =17 (11)4 + 15 + 1 =20 (12)10 + 1 + 5 =16 (13)9 + 2 + 3 =14 (14)1 + 14 + 3 =18 (15)1 + 10 + 5 =16 |