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)10 - 10 =
(2)40 - 10 =
(3)30 - 10 =
(4)30 - 20 =
(5)90 - 60 =
(6)40 - 30 =
(7)50 - 10 =
(8)10 - 10 =
(9)70 - 60 =
(10)60 - 60 =
(11)80 - 10 =
(12)20 - 20 =
(13)80 - 60 =
(14)60 - 50 =
(15)10 - 10 =