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