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