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一年级数学20以内的口算练习题及答案

试题 2007-07-20 03:17:12
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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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