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20以内混合进阶题 100道 用时: 错误: 9 1 1 = 2 5 1 = 3 1 4 = 7 2 4 = 1 0 5 = 4 1 2 = 1 0 0 = 5 2 2 = 4 2 5 = 5 4 4 = 2 4 3 = 7 0 3 = 7 1 3 = 4 9 0 = 2 2 0 = 2 1 2 = 4 0 1 = 8 7 4 = 1 5 2 = 3 8 1 = 7 7 2 = 2 4 0 = 7 6 1 = 1 4 2 = 7 8 2 = 2 3 0 = 7 1 0 = 1 8 5 = 2 2 4 = 0 7 5 = 8 0 2 = 2 3 4 = 1 8 4 = 4 3 2 = 9 7 0 = 2 8 3 = 1 9 5 = 4 5 2 = 1 3 0 = 1 6 3 = 6 0 2 = 2 7 3 = 5 1 1 = 6 5 1 = 0 0 0 = 1 9 4 = 0 5 0 = 3 2 4 = 8 9 5 = 2 6 4 = 8 2 3 = 3 3 0 = 7 4 1 = 9 9 0 = 9 1 2 = 1 6 2 = 7 3 5 = 8 5 3 = 1 2 1 = 6 4 5 = 2 2 2 = 9 4 4 = 3 1 3 = 8 3 1 = 0 8 5 = 7 9 2 = 2 7 2 = 7 6 0 = 0 5 3 = 1 7 5 = 8 6 5 = 8 2 3 = 7 8 3 = 5 4 2 = 6 9 3 = 3 4 0 = 9 1 3 = 6 1 4 = 5 2 0 = 4 5 3 = 6 1 3 = 0 4 1 = 3 1 2 = 7 2 5 = 1 7 4 = 4 2 1 = 1 3 2 = 8 2 1 = 1 5 3 = 1 1 4 = 2 4 4 = 1 0 3 = 8 9 0 = 3 4 5 = 0 0 4 = 2 4 4 = 8 3 3 = 2 6 5 = 6 4 1 = 2 8 1 =
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