（ただし１と２を合せて１２のような使い方は出来ません。）
105個の解法が見つかりました。
(((1+9)÷1)-0)=10
((0×1)+(1+9))=10
((0+(1+9))÷1)=10
((0+1)×(1+9))=10
((0+1)+(1×9))=10
((0+1)+(9÷1))=10
((0+9)+(1×1))=10
((0+9)+(1÷1))=10
((0÷1)+(1+9))=10
((1×(1+9))-0)=10
((1×1)+(0+9))=10
((1×1)+(9-0))=10
((1×1)-(0-9))=10
((1×9)+(0+1))=10
((1×9)+(1-0))=10
((1×9)-(0-1))=10
((1+(0+9))÷1)=10
((1+(1×9))-0)=10
((1+(9-0))÷1)=10
((1+(9÷1))-0)=10
((1+9)×(0+1))=10
((1+9)×(1-0))=10
((1+9)+(0×1))=10
((1+9)+(0÷1))=10
((1+9)-(0×1))=10
((1+9)-(0÷1))=10
((1+9)÷(0+1))=10
((1+9)÷(1-0))=10
((1-(0-9))÷1)=10
((1-0)×(1+9))=10
((1-0)+(1×9))=10
((1-0)+(9÷1))=10
((1÷1)+(0+9))=10
((1÷1)+(9-0))=10
((1÷1)-(0-9))=10
((9+(0+1))÷1)=10
((9+(1×1))-0)=10
((9+(1-0))÷1)=10
((9+(1÷1))-0)=10
((9-(0-1))÷1)=10
((9-0)+(1×1))=10
((9-0)+(1÷1))=10
((9÷1)+(0+1))=10
((9÷1)+(1-0))=10
((9÷1)-(0-1))=10
(0+((1+9)÷1))=10
(0+(1×(1+9)))=10
(0+(1+(1×9)))=10
(0+(1+(9÷1)))=10
(0+(9+(1×1)))=10
(0+(9+(1÷1)))=10
(1×((1+9)-0))=10
(1×(0+(1+9)))=10
(1×(1+(0+9)))=10
(1×(1+(9-0)))=10
(1×(1-(0-9)))=10
(1×(9+(0+1)))=10
(1×(9+(1-0)))=10
(1×(9-(0-1)))=10
(1+((0+9)÷1))=10
(1+((1×9)-0))=10
(1+((9-0)÷1))=10
(1+((9÷1)-0))=10
(1+(0+(1×9)))=10
(1+(0+(9÷1)))=10
(1+(1×(0+9)))=10
(1+(1×(9-0)))=10
(1+(9×(0+1)))=10
(1+(9×(1-0)))=10
(1+(9+(0×1)))=10
(1+(9+(0÷1)))=10
(1+(9-(0×1)))=10
(1+(9-(0÷1)))=10
(1+(9÷(0+1)))=10
(1+(9÷(1-0)))=10
(1-((0×1)-9))=10
(1-((0-9)÷1))=10
(1-((0÷1)-9))=10
(1-(0-(1×9)))=10
(1-(0-(9÷1)))=10
(1-(1×(0-9)))=10
(1-(9×(0-1)))=10
(1-(9÷(0-1)))=10
(9+((0+1)÷1))=10
(9+((1×1)-0))=10
(9+((1-0)÷1))=10
(9+((1÷1)-0))=10
(9+(0+(1×1)))=10
(9+(0+(1÷1)))=10
(9+(1×(0+1)))=10
(9+(1×(1-0)))=10
(9+(1+(0×1)))=10
(9+(1+(0÷1)))=10
(9+(1-(0×1)))=10
(9+(1-(0÷1)))=10
(9+(1÷(0+1)))=10
(9+(1÷(1-0)))=10
(9-((0×1)-1))=10
(9-((0-1)÷1))=10
(9-((0÷1)-1))=10
(9-(0-(1×1)))=10
(9-(0-(1÷1)))=10
(9-(1×(0-1)))=10
(9-(1÷(0-1)))=10