亲爱小朋友们，今天为你准备了小学一年级数学口算题，相信大家一定能够努力做、开动脑筋，做出满意的答卷。加油啊!!!
(1)39 + 20 =
(2)27 + 40 =
(3)14 + 50 =
(4)26 + 70 =
(5)18 + 10 =
(6)83 + 10 =
(7)28 + 60 =
(8)17 + 10 =
(9)72 + 20 =
(10)14 + 60 =
(11)33 + 50 =
(12)78 + 10 =
(13)59 + 20 =
(14)65 + 10 =
(15)52 + 20 =