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