字帖工坊口算题
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字帖工坊
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口算练习

9 + 8 = 2 + 12 = 17 + 6 = 7 + 2 =
13 + 3 = 20 + 10 = 8 + 8 = 10 + 5 =
16 + 12 = 14 + 13 = 16 + 7 = 13 + 2 =
17 + 3 = 6 + 10 = 4 + 13 = 10 + 4 =
4 + 13 = 11 + 12 = 14 + 17 = 8 + 10 =
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