一年级上学期数学竞赛题
一年级上学期数学竞赛试题年班姓名:一、填空1.找规律填数。(1)2、4、6、8、()、()、()、()、18、20。(2)19、17、15、()、()、()、()。2.(1)2+□=3+□(2)10-□=6+□(3)10=□+□=□-□=20-□3.从1、2、3、4、5、6、7、8、9、10中选出9个数填在□里组成三道算式,每个数只能用1次。□+□=□□+□=□□+□=□4.明明比亮亮大2岁,再过3年,明明比亮亮大()岁。5.强强和小军打了3小时乒乓球,两人各打了()小时。6.图形代表几。○+○=6,○=(),△+△+△=15,△=(),○+△=()。二、列数20、9、3、11、0...
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