（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。
((0+2)+(1+7))=10
((0+7)+(1+2))=10
((1+(2+7))-0)=10
((1+2)+(0+7))=10
((1+2)+(7-0))=10
((1+2)-(0-7))=10
((1+7)+(0+2))=10
((1+7)+(2-0))=10
((1+7)-(0-2))=10
((1-0)+(2+7))=10
((2+(1+7))-0)=10
((2+7)+(0+1))=10
((2+7)+(1-0))=10
((2+7)-(0-1))=10
((2-0)+(1+7))=10
((7+(1+2))-0)=10
((7-0)+(1+2))=10
(0+(1+(2+7)))=10
(0+(2+(1+7)))=10
(0+(7+(1+2)))=10
(1+((2+7)-0))=10
(1+(0+(2+7)))=10
(1+(2+(0+7)))=10
(1+(2+(7-0)))=10
(1+(2-(0-7)))=10
(1+(7+(0+2)))=10
(1+(7+(2-0)))=10
(1+(7-(0-2)))=10
(1-((0-2)-7))=10
(1-((0-7)-2))=10
(1-(0-(2+7)))=10
(2+((1+7)-0))=10
(2+(0+(1+7)))=10
(2+(1+(0+7)))=10
(2+(1+(7-0)))=10
(2+(1-(0-7)))=10
(2+(7+(0+1)))=10
(2+(7+(1-0)))=10
(2+(7-(0-1)))=10
(2-((0-1)-7))=10
(2-((0-7)-1))=10
(2-(0-(1+7)))=10
(7+((1+2)-0))=10
(7+(0+(1+2)))=10
(7+(1+(0+2)))=10
(7+(1+(2-0)))=10
(7+(1-(0-2)))=10
(7+(2+(0+1)))=10
(7+(2+(1-0)))=10
(7+(2-(0-1)))=10
(7-((0-1)-2))=10
(7-((0-2)-1))=10
(7-(0-(1+2)))=10