小学一年级口算题：10以内的连加连减混合
(1)1 + 8 + 1 =
(2)5 + 1 + 2 =
(3)4 - 1 - 1=
(4)2 + 5 + 1 =
(5)3 - 2 - 1=
(6)4 + 1 + 3 =
(7)4 - 1 - 2=
(8)9 - 4 - 1=
(9)5 - 2 - 1=
(10)3 + 5 + 1 =
(11)10 - 5 - 4=
(12)1 + 2 + 1 =
(13)5 + 4 + 1 =
(14)10 - 2 - 4=
(15)2 + 2 + 5 =