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