一年级5以内的口算减法

时间:2015-12-02 14:16:00   来源:开云网页版     [字体: ]
(1)3 - 3 =

(2)1 - 1 =

(3)1 - 1 =

(4)3 - 2 =

(5)4 - 3 =

(6)3 - 2 =

(7)1 - 1 =

(8)1 - 1 =

(9)3 - 3 =