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一年级数学20以内的口算练习题及答案

试题 时间:2018-08-10 我要投稿
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  一年级数学口算20以内的填括号

  (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

  20以内的填括号参考答案

  (1)(12) - 10 = 2

  (2)14 - (4)= 10

  (3)17 +(1) = 18

  (4)7 + (13)= 20

  (5) (8)- 5 = 3

  (6)18 -(11) = 7

  (7)(14) - 10 = 4

  (8)(13) - 4 = 9

  (9)1 +(10) = 11

  (10)15 -(14) = 1

  (11)3 -(2) = 1

  (12)(9) + 3 = 12

  (13)(16) - 11 = 5

  (14)(5) - 2 = 3

  (15)18 -(15) = 3

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