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50以内加减进阶题 100道 用时: 错误: 41 ( )= 34 45 ( )= 46 ( ) 34 = 39 37 ( )= 48 ( ) 5 = 8 ( ) 1 = 29 ( ) 0 = 42 ( ) 24 = 34 44 ( )= 5 ( ) 37 = 6 ( ) 0 = 4 ( ) 25 = 11 ( ) 22 = 45 ( ) 12 = 22 10 ( )= 22 ( ) 8 = 41 ( ) 13 = 16 ( ) 38 = 39 36 ( )= 49 ( ) 1 = 16 ( ) 18 = 21 34 ( )= 12 39 ( )= 12 ( ) 15 = 21 ( ) 34 = 44 ( ) 13 = 46 11 ( )= 23 17 ( )= 47 ( ) 34 = 49 ( ) 39 = 3 47 ( )= 10 ( ) 25 = 1 ( ) 9 = 22 ( ) 2 = 27 ( ) 12 = 0 ( ) 27 = 19 ( ) 11 = 26 39 ( )= 18 ( ) 9 = 10 27 ( )= 5 ( ) 25 = 31 ( ) 1 = 37 13 ( )= 13 24 ( )= 6 ( ) 21 = 32 28 ( )= 19 45 ( )= 44 ( ) 37 = 46 40 ( )= 15 ( ) 27 = 16 ( ) 3 = 30 ( ) 44 = 3 ( ) 29 = 39 ( ) 33 = 4 16 ( )= 36 0 ( )= 35 19 ( )= 0 ( ) 10 = 30 26 ( )= 41 0 ( )= 26 ( ) 7 = 38 12 ( )= 9 24 ( )= 39 21 ( )= 18 ( ) 1 = 35 ( ) 27 = 12 ( ) 27 = 0 ( ) 12 = 23 24 ( )= 34 37 ( )= 29 ( ) 26 = 49 47 ( )= 21 ( ) 16 = 43 4 ( )= 19 ( ) 0 = 38 ( ) 48 = 49 ( ) 3 = 34 19 ( )= 47 ( ) 18 = 28 25 ( )= 30 39 ( )= 27 28 ( )= 24 39 ( )= 7 ( ) 8 = 37 36 ( )= 16 17 ( )= 20 ( ) 1 = 31 ( ) 13 = 24 31 ( )= 47 4 ( )= 4 ( ) 22 = 1 ( ) 10 = 10 8 ( )= 8 ( ) 12 = 34 ( ) 5 = 13 ( ) 3 = 24 ( ) 22 = 29 ( ) 4 = 39 4 ( )= 14 27 ( )= 21
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