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