（ただし１と２を合せて１２のような使い方は出来ません。）
50個の解法が見つかりました。
(((6+9)-3)-2)=10
((2×(6+9))÷3)=10
((2÷3)×(6+9))=10
((6+(9-2))-3)=10
((6+(9-3))-2)=10
((6+9)×(2÷3))=10
((6+9)-(2+3))=10
((6+9)÷(3÷2))=10
((6-(2-9))-3)=10
((6-(3-9))-2)=10
((6-2)+(9-3))=10
((6-2)-(3-9))=10
((6-3)+(9-2))=10
((6-3)-(2-9))=10
((9+(6-2))-3)=10
((9+(6-3))-2)=10
((9-(2-6))-3)=10
((9-(3-6))-2)=10
((9-2)+(6-3))=10
((9-2)-(3-6))=10
((9-3)+(6-2))=10
((9-3)-(2-6))=10
(2×((6+9)÷3))=10
(2÷(3÷(6+9)))=10
(6×(2-(3÷9)))=10
(6+((9-2)-3))=10
(6+((9-3)-2))=10
(6+(9-(2+3)))=10
(6-((2+3)-9))=10
(6-(2+(3-9)))=10
(6-(2-(9-3)))=10
(6-(3+(2-9)))=10
(6-(3-(9-2)))=10
(9+((2×3)÷6))=10
(9+((6-2)-3))=10
(9+((6-3)-2))=10
(9+((6÷2)÷3))=10
(9+((6÷3)÷2))=10
(9+(2×(3÷6)))=10
(9+(2÷(6÷3)))=10
(9+(3×(2÷6)))=10
(9+(3÷(6÷2)))=10
(9+(6-(2+3)))=10
(9+(6÷(2×3)))=10
(9-((2+3)-6))=10
(9-(2+(3-6)))=10
(9-(2-(6-3)))=10
(9-(3+(2-6)))=10
(9-(3-(6-2)))=10