（ただし１と２を合せて１２のような使い方は出来ません。）
54個の解法が見つかりました。
(((5+6)÷1)-1)=10
((1×(5+6))-1)=10
((1×5)+(6-1))=10
((1×5)-(1-6))=10
((1×6)+(5-1))=10
((1×6)-(1-5))=10
((5+(1×6))-1)=10
((5+(6-1))÷1)=10
((5+(6÷1))-1)=10
((5+6)-(1×1))=10
((5+6)-(1÷1))=10
((5-(1-6))÷1)=10
((5-1)+(1×6))=10
((5-1)+(6÷1))=10
((5÷1)+(6-1))=10
((5÷1)-(1-6))=10
((6+(1×5))-1)=10
((6+(5-1))÷1)=10
((6+(5÷1))-1)=10
((6-(1-5))÷1)=10
((6-1)+(1×5))=10
((6-1)+(5÷1))=10
((6÷1)+(5-1))=10
((6÷1)-(1-5))=10
(1×((5+6)-1))=10
(1×(5+(6-1)))=10
(1×(5-(1-6)))=10
(1×(6+(5-1)))=10
(1×(6-(1-5)))=10
(5+((1×6)-1))=10
(5+((6-1)÷1))=10
(5+((6÷1)-1))=10
(5+(1×(6-1)))=10
(5+(6-(1×1)))=10
(5+(6-(1÷1)))=10
(5-((1×1)-6))=10
(5-((1-6)÷1))=10
(5-((1÷1)-6))=10
(5-(1×(1-6)))=10
(5-(1-(1×6)))=10
(5-(1-(6÷1)))=10
(6+((1×5)-1))=10
(6+((5-1)÷1))=10
(6+((5÷1)-1))=10
(6+(1×(5-1)))=10
(6+(5-(1×1)))=10
(6+(5-(1÷1)))=10
(6-((1×1)-5))=10
(6-((1-5)÷1))=10
(6-((1÷1)-5))=10
(6-(1×(1-5)))=10
(6-(1-(1×5)))=10
(6-(1-(5÷1)))=10