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