一年级下册口算题-一年级20以内的加减法
2018-03-01 15:11:48
(1)12 - 5 =
(2)16 + 2 =
(3)5 + 1 =
(4)17 + 3 =
(5)4 - 4 =
(6)2 - 2 =
(7)5 - 5 =
(8)11 - 9 =
(9)15 - 1 =