（ただし１と２を合せて１２のような使い方は出来ません。）
27個の解法が見つかりました。
((3+3)+(9-5))=10
((3+3)-(5-9))=10
((3+9)+(3-5))=10
((3+9)-(5-3))=10
((3-5)+(3+9))=10
((5×(9-3))÷3)=10
((5÷3)×(9-3))=10
((9+(3+3))-5)=10
((9-3)×(5÷3))=10
((9-3)÷(3÷5))=10
((9-5)+(3+3))=10
(3+((3+9)-5))=10
(3+(3+(9-5)))=10
(3+(3-(5-9)))=10
(3+(9+(3-5)))=10
(3+(9-(5-3)))=10
(3-((5-3)-9))=10
(3-((5-9)-3))=10
(3-(5-(3+9)))=10
(5×((9-3)÷3))=10
(5÷(3÷(9-3)))=10
(9+((3+3)-5))=10
(9+(3+(3-5)))=10
(9+(3-(5-3)))=10
(9-((5-3)-3))=10
(9-(5-(3+3)))=10