一年级下册口算题-一年级两位数减一位数的减法
奥数网
2017-02-21 14:27:01
(1)59 - 4 =
(2)89 - 2 =
(3)21 - 9 =
(4)42 - 3 =
(5)38 - 7 =
(6)62 - 1 =
(7)80 - 5 =
(8)88 - 1 =
(9)74 - 4 =
