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)22 - 10 =
(2)48 - 10 =
(3)50 - 10 =
(4)23 - 20 =
(5)86 - 40 =
(6)53 - 30 =
(7)45 - 20 =
(8)89 - 30 =
(9)33 - 10 =
(10)13 - 10 =
(11)12 - 10 =
(12)89 - 70 =
(13)79 - 60 =
(14)67 - 40 =
(15)36 - 30 =