（ただし１と２を合せて１２のような使い方は出来ません。）
104個の解法が見つかりました。
(((2×5)÷1)-0)=10
((0×1)+(2×5))=10
((0+(2×5))÷1)=10
((0+1)×(2×5))=10
((0+2)×(1×5))=10
((0+2)×(5÷1))=10
((0+2)÷(1÷5))=10
((0+5)×(1×2))=10
((0+5)×(2÷1))=10
((0+5)÷(1÷2))=10
((0÷1)+(2×5))=10
((1×(2×5))-0)=10
((1×2)×(0+5))=10
((1×2)×(5-0))=10
((1×5)×(0+2))=10
((1×5)×(2-0))=10
((1-0)×(2×5))=10
((2×(0+5))÷1)=10
((2×(1×5))-0)=10
((2×(5-0))÷1)=10
((2×(5÷1))-0)=10
((2×5)×(0+1))=10
((2×5)×(1-0))=10
((2×5)+(0×1))=10
((2×5)+(0÷1))=10
((2×5)-(0×1))=10
((2×5)-(0÷1))=10
((2×5)÷(0+1))=10
((2×5)÷(1-0))=10
((2-0)×(1×5))=10
((2-0)×(5÷1))=10
((2-0)÷(1÷5))=10
((2÷(1÷5))-0)=10
((2÷1)×(0+5))=10
((2÷1)×(5-0))=10
((5×(0+2))÷1)=10
((5×(1×2))-0)=10
((5×(2-0))÷1)=10
((5×(2÷1))-0)=10
((5-0)×(1×2))=10
((5-0)×(2÷1))=10
((5-0)÷(1÷2))=10
((5÷(1÷2))-0)=10
((5÷1)×(0+2))=10
((5÷1)×(2-0))=10
(0+((2×5)÷1))=10
(0+(1×(2×5)))=10
(0+(2×(1×5)))=10
(0+(2×(5÷1)))=10
(0+(2÷(1÷5)))=10
(0+(5×(1×2)))=10
(0+(5×(2÷1)))=10
(0+(5÷(1÷2)))=10
(1×((2×5)-0))=10
(1×(0+(2×5)))=10
(1×(2×(0+5)))=10
(1×(2×(5-0)))=10
(1×(5×(0+2)))=10
(1×(5×(2-0)))=10
(2×((0+5)÷1))=10
(2×((1×5)-0))=10
(2×((5-0)÷1))=10
(2×((5÷1)-0))=10
(2×(0+(1×5)))=10
(2×(0+(5÷1)))=10
(2×(1×(0+5)))=10
(2×(1×(5-0)))=10
(2×(5×(0+1)))=10
(2×(5×(1-0)))=10
(2×(5+(0×1)))=10
(2×(5+(0÷1)))=10
(2×(5-(0×1)))=10
(2×(5-(0÷1)))=10
(2×(5÷(0+1)))=10
(2×(5÷(1-0)))=10
(2÷((0+1)÷5))=10
(2÷((1-0)÷5))=10
(2÷((1÷5)-0))=10
(2÷(0+(1÷5)))=10
(2÷(1÷(0+5)))=10
(2÷(1÷(5-0)))=10
(5×((0+2)÷1))=10
(5×((1×2)-0))=10
(5×((2-0)÷1))=10
(5×((2÷1)-0))=10
(5×(0+(1×2)))=10
(5×(0+(2÷1)))=10
(5×(1×(0+2)))=10
(5×(1×(2-0)))=10
(5×(2×(0+1)))=10
(5×(2×(1-0)))=10
(5×(2+(0×1)))=10
(5×(2+(0÷1)))=10
(5×(2-(0×1)))=10
(5×(2-(0÷1)))=10
(5×(2÷(0+1)))=10
(5×(2÷(1-0)))=10
(5÷((0+1)÷2))=10
(5÷((1-0)÷2))=10
(5÷((1÷2)-0))=10
(5÷(0+(1÷2)))=10
(5÷(1÷(0+2)))=10
(5÷(1÷(2-0)))=10