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