一年级口算题20以内的填括号

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  (1) - 10 = 2

  (2)14 - = 10

  (3)17 + = 18

  (4)7 + = 20

  (5) - 5 = 3

  (6)18 - = 7

  (7) - 10 = 4

  (8) - 4 = 9

  (9)1 + = 11

  (10)15 - = 1

  (11)3 - = 1

  (12) + 3 = 12

  (13) - 11 = 5

  (14) - 2 = 3

  (15)18 - = 3

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