(1)5+()=8
(2)8+()=10
(3)()-2=3
(4)()-4=1
(5)()+2=10
(6)()+1=8
(7)4-()=2
(8)()-1=1
(9)9-()=0
(10)()-6=2
(11)()+1=10
(12)5+()=8
(13)()+5=8
(14)8+()=10
(15)()+3=4
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(1)5+()=8
(2)8+()=10
(3)()-2=3
(4)()-4=1
(5)()+2=10
(6)()+1=8
(7)4-()=2
(8)()-1=1
(9)9-()=0
(10)()-6=2
(11)()+1=10
(12)5+()=8
(13)()+5=8
(14)8+()=10
(15)()+3=4