(ただし1と2を合せて12のような使い方は出来ません。)
36個の解法が見つかりました。
((2×6)-(6-4))=10
((2+(6+6))-4)=10
((2+6)+(6-4))=10
((2+6)-(4-6))=10
((2-4)+(6+6))=10
((4×(6-2))-6)=10
((4+(2×6))-6)=10
((4-6)+(2×6))=10
((6×(6-4))-2)=10
((6+(2+6))-4)=10
((6+6)+(2-4))=10
((6+6)-(4-2))=10
((6+6)-(4÷2))=10
((6-4)+(2+6))=10
(2×(4+(6÷6)))=10
(2+((6+6)-4))=10
(2+(6+(6-4)))=10
(2+(6-(4-6)))=10
(2-((4-6)-6))=10
(2-(4-(6+6)))=10
(4+((2×6)-6))=10
(4+((6+6)÷2))=10
(4-(6-(2×6)))=10
(6+((2+6)-4))=10
(6+(2×(6-4)))=10
(6+(2+(6-4)))=10
(6+(2-(4-6)))=10
(6+(6+(2-4)))=10
(6+(6-(4-2)))=10
(6+(6-(4÷2)))=10
(6-((4-2)-6))=10
(6-((4-6)-2))=10
(6-((4÷2)-6))=10
(6-(2×(4-6)))=10
(6-(4-(2+6)))=10