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1、 20以内加减进阶题 100道 用时: 错误: 10 ( )= 12 12 ( )= 0 ( ) 13 = 1 ( ) 0 = 5 5 ( )= 10 8 ( )= 5 19 ( )= 4 1 ( )= 7 5 ( )= 8 ( ) 1 = 18 ( ) 0 = 9 ( ) 3 = 3 ( ) 7 = 7 14 ( )= 6 18 ( )= 10 ( ) 6 = 18 ( ) 16 = 1 1 ( )= 6 8 ( )= 16 ( ) 0 = 7 11 ( )= 20 ( ) 1 = 12 ( ) 10 = 18 ( ) 7 = 10 ( ) 9 = 10 ( ) 10 = 14 ( ) 9
2、= 8 ( ) 4 = 17 3 ( )= 19 14 ( )= 4 ( ) 2 = 5 ( ) 5 = 6 2 ( )= 16 ( ) 17 = 2 2 ( )= 3 16 ( )= 16 ( ) 5 = 8 19 ( )= 3 18 ( )= 7 ( ) 15 = 0 ( ) 9 = 6 17 ( )= 2 4 ( )= 3 ( ) 13 = 17 ( ) 3 = 14 ( ) 13 = 4 ( ) 5 = 13 ( ) 2 = 9 ( ) 0 = 3 ( ) 4 = 9 14 ( )= 14 5 ( )= 13 ( ) 6 = 7 0 ( )= 6 7 ( )= 10 ( ) 6 = 1
3、0 14 ( )= 7 18 ( )= 14 10 ( )= 8 ( ) 1 = 1 ( ) 13 = 16 ( ) 18 = 1 ( ) 8 = 14 ( ) 3 = 0 ( ) 2 = 17 ( ) 8 = 8 4 ( )= 14 ( ) 3 = 5 ( ) 9 = 1 15 ( )= 19 ( ) 11 = 6 ( ) 2 = 7 ( ) 0 = 14 ( ) 12 = 16 ( ) 11 = 19 13 ( )= 13 ( ) 18 = 18 ( ) 1 = 11 15 ( )= 0 17 ( )= 20 ( ) 7 = 2 3 ( )= 3 ( ) 1 = 10 ( ) 4 = 8 7 ( )= 14 ( ) 2 = 13 ( ) 5 = 10 5 ( )= 2 ( ) 10 = 19 ( ) 0 = 15 ( ) 16 = 16 11 ( )= 4 9 ( )= 16 6 ( )= 13 11 ( )= 2 ( ) 12 = 4 ( ) 14 = 2 ( ) 14 = 14 ( ) 4 = 20 ( ) 5 = 4