小学数学第三册第一二单元练习卷一、 口算(8 分)67 - 24 = 65 - 16 = 77 - 34 = 96 - 61 =75 - 25 = 5 4- 14 = 67 - 56 = 56 - 9 =42 + 9= 43 + 3 = 48 + 4 = 25 + 3 =33 + 4= 23 + 9 = 18 + 12 = 9 + 26 = 25 + 8 = 24 + 7 = 24 + 6 = 38 + 7 =32 - 20 = 53 - 20 = 46 - 20 = 43 - 21 = 55 - 44 = 33 - 27 = 36 - 14 = 87 - 77 =36 + 42 = 15 + 55 = 24 + 16 = 16 + 16 = 34 + 8 = 49 + 5 = 42 + 31 = 24 + 16 =44 - 8 = 34 - 5 = 83 - 6 = 45 - 23 =43 - 12 = 63 - 12 = 53 - 40 = 89 - 85 =96 - 50 = 78 - 23 = 56 - 24 = 89 - 5 8 =43 + 25 = 12 + 46 = 47 + 13 = 25 + 14 =18 + 20 = 3 6 + 21 = 30 + 45 = 27 + 12 =24 + 25 = 35 + 12 = 4 0 + 58 = 26 + 13 =50 - 46 = 72 - 22 = 45 - 13 = 36 - 27 =14 - 13 = 58 - 47 = 39 - 27 = 15 - 9 =60 + 32 = 81 + 12 = 34 + 25 = 17 + 12 =二、 我会填空
(20 分)1、我会填上正确的单位名称(米、厘米)(4 分)铅笔长 21( ) 学校操场宽 100( )我的身高是 125( ) 路边的小树高 2( )2、