精选优质文档-倾情为你奉上拐李小学二年级下册数学口算练习题 姓名：_21 22 23 24 3249= 56 57 58 59 4057=96 97 98 99 4593=36 37 38 39 8193=81 82 83 84 664=46 47 48 49 1238=51 52 53 54 824=76 77 78 79 2176=41 42 43 44 4272=25 35 45 55 1687=31 32 33 34 386=65 75 85 95 3282=61 62 63 64 2733=26 27 28 29 6484=71 72 73 74 3643= 66 67 68 69 4862=91 92 93 94 327=86 87 88 89 639=328 = 37 = 92 = 357 = 68 = 568 = 213 = 66 = 639 =1839= 5497= 3468= 2736=45639= 6732= 56829= 664=专心-专注-专业