20以内凑十法 练习题
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20以内凑十法练习题9 + 2 = 9 + 3 = 9 + 4 =
9 + 5 = 9 + 6 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 9 =
8 + 8 = 8 + 7 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
7 + 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 +
7 =
6 + 6 = 6 + 5 = 5 + 9 =
5 + 8 = 5 + 7 = 5 +
6 =
4 + 9 = 4 + 8 = 4 + 7 =
3 + 9 = 3 + 8 = 2 + 9 =
5 +
6 =
7 +
8 =
9 + 4 =
9 + 7 = 9 + 4 = 6 + 7 =
5 + 8 = 9 + 9 =
6 + 8 = 4 +
7 = 5 + 9 =
8 + 3 =
8 + 4 = 7 + 4 = 9 + 3 = 7 + 5 = 8 + 8 = 7 + 6 =
7 + 9 = 8 + 4 = 7 + 8 =
6 + 8 = 9 + 8 =
7 + 5 =
6 + 6 = 6 + 9 =
7 + 9 =
5 + 8 = 5 +
6 = 8 + 4 =
4 + 7 = 4 + 8 = 8 + 7 = 3 + 9 = 4 + 8 = 3 + 9 =
9 + 5 = 8 + 5 = 7 + 4 =
8 + 5 = 9 + 2 = 6 + 7 =
9 + 8 = 9 + 9 = 8 + 8 =
8 + 7 = 8 + 9 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 5 + 8 = 6 + 7 =
7 + 6 = 9 + 4 = 8 + 5 =
7 + 9 = 6 + 8 = 5 + 7 =