一年级数学口算练习题及答案:20以内的填括号
<p> 一年级数学口算20以内的填括号</p><p>(1)( ) - 10 = 2</p><p>(2)14 - ( )= 10</p><p>(3)17 +( ) = 18</p><p>(4)7 + ( )= 20</p><p>(5) ( )- 5 = 3</p><p>(6)18 -( ) = 7</p><p>(7)( ) - 10 = 4</p><p>(8)( ) - 4 = 9</p><p>(9)1 +( ) = 11</p><p>(10)15 -( ) = 1</p><p>(11)3 -( ) = 1</p><p>(12)( ) + 3 = 12</p><p>(13)( ) - 11 = 5</p><p>(14)( ) - 2 = 3</p><p>(15)18 -( ) = 3</p><p>20以内的填括号参考答案</p><p>(1)(12) - 10 = 2</p><p>(2)14 - (4)= 10</p><p>(3)17 +(1) = 18</p><p>(4)7 + (13)= 20</p><p>(5) (8)- 5 = 3</p><p>(6)18 -(11) = 7</p><p>(7)(14) - 10 = 4</p><p>(8)(13) - 4 = 9</p><p>(9)1 +(10) = 11</p><p>(10)15 -(14) = 1</p><p>(11)3 -(2) = 1</p><p>(12)(9) + 3 = 12</p><p>(13)(16) - 11 = 5</p><p>(14)(5) - 2 = 3</p><p>(15)18 -(15) = 3</p>
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