小学数学一年级口算题:5以内的减法
(1)1 - 1 =
(2)3 - 1 =
(3)1 - 1 =
(4)4 - 1 =
(5)1 - 1 =
(6)3 - 3 =
(7)1 - 1 =
(8)4 - 4 =
(9)1 - 1 =
(10)2 - 1 =
(11)3 - 1 =
(12)4 - 4 =
(13)2 - 1 =
(14)3 - 2 =
(15)4 - 1 =
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