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
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