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