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