（ただし１と２を合せて１２のような使い方は出来ません。）
71個の解法が見つかりました。
(((3+9)-2)-0)=10
((0+(3+9))-2)=10
((0+3)+(9-2))=10
((0+3)-(2-9))=10
((0+9)+(3-2))=10
((0+9)-(2-3))=10
((0-2)+(3+9))=10
((3+(0+9))-2)=10
((3+(9-0))-2)=10
((3+(9-2))-0)=10
((3+9)+(0-2))=10
((3+9)-(0+2))=10
((3+9)-(2-0))=10
((3-(0-9))-2)=10
((3-(2-9))-0)=10
((3-0)+(9-2))=10
((3-0)-(2-9))=10
((3-2)+(0+9))=10
((3-2)+(9-0))=10
((3-2)-(0-9))=10
((9+(0+3))-2)=10
((9+(3-0))-2)=10
((9+(3-2))-0)=10
((9-(0-3))-2)=10
((9-(2-3))-0)=10
((9-0)+(3-2))=10
((9-0)-(2-3))=10
((9-2)+(0+3))=10
((9-2)+(3-0))=10
((9-2)-(0-3))=10
(0+((3+9)-2))=10
(0+(3+(9-2)))=10
(0+(3-(2-9)))=10
(0+(9+(3-2)))=10
(0+(9-(2-3)))=10
(0-((2-3)-9))=10
(0-((2-9)-3))=10
(0-(2-(3+9)))=10
(3+((0+9)-2))=10
(3+((9-0)-2))=10
(3+((9-2)-0))=10
(3+(0+(9-2)))=10
(3+(0-(2-9)))=10
(3+(9+(0-2)))=10
(3+(9-(0+2)))=10
(3+(9-(2-0)))=10
(3-((0+2)-9))=10
(3-((2-0)-9))=10
(3-((2-9)-0))=10
(3-(0+(2-9)))=10
(3-(0-(9-2)))=10
(3-(2+(0-9)))=10
(3-(2-(0+9)))=10
(3-(2-(9-0)))=10
(9+((0+3)-2))=10
(9+((3-0)-2))=10
(9+((3-2)-0))=10
(9+(0+(3-2)))=10
(9+(0-(2-3)))=10
(9+(3+(0-2)))=10
(9+(3-(0+2)))=10
(9+(3-(2-0)))=10
(9-((0+2)-3))=10
(9-((2-0)-3))=10
(9-((2-3)-0))=10
(9-(0+(2-3)))=10
(9-(0-(3-2)))=10
(9-(2+(0-3)))=10
(9-(2-(0+3)))=10
(9-(2-(3-0)))=10