一年级下册口算题-一年级20以内的减法
2018-03-01 15:11:48
(1)18 - 4 =
(2)15 - 13 =
(3)13 - 11 =
(4)13 - 13 =
(5)15 - 7 =
(6)4 - 2 =
(7)15 - 5 =
(8)15 - 11 =
(9)16 - 3 =