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1、 50以内计算题 100道 用时： 错误： 5 4 = 15 33 = 32 4 = 7 13 = 3 13 = 12 1 = 6 14 = 6 31 = 7 2 = 27 23 = 2 25 = 8 6 = 21 4 = 44 4 = 10 20 = 19 18 = 15 23 = 8 39 = 14 36 = 14 25 = 11 13 = 18 30 = 5 37 = 1 38 = 7 8 = 0 7 = 4 1 = 12 5 = 8 12 = 1 44 = 15 13 = 11 24 = 5 44 = 27 18 = 15 7 = 18 25 = 14 31 = 3 14 = 32 1
2、6 = 7 7 = 9 27 = 20 6 = 19 13 = 4 45 = 15 30 = 29 4 = 15 18 = 24 6 = 40 9 = 3 46 = 11 18 = 0 1 = 20 10 = 28 5 = 12 6 = 10 30 = 5 39 = 19 23 = 20 0 = 5 33 = 20 11 = 20 16 = 33 9 = 4 0 = 22 25 = 16 6 = 41 3 = 28 16 = 5 32 = 5 27 = 23 18 = 7 18 = 2 9 = 32 11 = 2 20 = 16 11 = 16 17 = 3 8 = 23 23 = 25 4 = 26 24 = 36 10 = 13 37 = 12 0 = 46 1 = 24 22 = 10 25 = 1 28 = 4 6 = 17 32 = 17 4 = 7 25 = 6 21 = 10 32 = 37 4 = 3 2 = 13 32 = 40 4 = 37 2 = 2 32 =
