(ただし1と2を合せて12のような使い方は出来ません。)
29個の解法が見つかりました。
((6+(8-2))-2)=10
((6+8)-(2×2))=10
((6+8)-(2+2))=10
((6-(2-8))-2)=10
((6-2)+(8-2))=10
((6-2)-(2-8))=10
((8+(2×6))÷2)=10
((8+(6-2))-2)=10
((8-(2-6))-2)=10
((8-2)+(6-2))=10
((8-2)-(2-6))=10
(2×(8-(6÷2)))=10
(6+((8-2)-2))=10
(6+(8-(2×2)))=10
(6+(8-(2+2)))=10
(6-((2×2)-8))=10
(6-((2+2)-8))=10
(6-(2+(2-8)))=10
(6-(2-(8-2)))=10
(8+((6-2)-2))=10
(8+((6-2)÷2))=10
(8+(6-(2×2)))=10
(8+(6-(2+2)))=10
(8-((2×2)-6))=10
(8-((2+2)-6))=10
(8-((2-6)÷2))=10
(8-(2+(2-6)))=10
(8-(2-(6-2)))=10