(1)8-2=
(2)4+5=
(3)4+4=
(4)4-3=
(5)6-1=
(6)3+3=
(7)9-5=
(8)7-1=
(9)9-4=
(10)7+2=
(11)4+2=
(12)7+3=
(13)1+1=
(14)6-3=
(15)2+1=