(ただし1と2を合せて12のような使い方は出来ません。)
85個の解法が見つかりました。
(((5+7)-2)-0)=10
((0×7)+(2×5))=10
((0+(5+7))-2)=10
((0+5)+(7-2))=10
((0+5)-(2-7))=10
((0+7)+(5-2))=10
((0+7)-(2-5))=10
((0-2)+(5+7))=10
((0÷7)+(2×5))=10
((2×5)+(0×7))=10
((2×5)+(0÷7))=10
((2×5)-(0×7))=10
((2×5)-(0÷7))=10
((5+(0+7))-2)=10
((5+(7-0))-2)=10
((5+(7-2))-0)=10
((5+7)+(0-2))=10
((5+7)-(0+2))=10
((5+7)-(2-0))=10
((5-(0-7))-2)=10
((5-(2-7))-0)=10
((5-0)+(7-2))=10
((5-0)-(2-7))=10
((5-2)+(0+7))=10
((5-2)+(7-0))=10
((5-2)-(0-7))=10
((7+(0+5))-2)=10
((7+(5-0))-2)=10
((7+(5-2))-0)=10
((7-(0-5))-2)=10
((7-(2-5))-0)=10
((7-0)+(5-2))=10
((7-0)-(2-5))=10
((7-2)+(0+5))=10
((7-2)+(5-0))=10
((7-2)-(0-5))=10
(0+((5+7)-2))=10
(0+(5+(7-2)))=10
(0+(5-(2-7)))=10
(0+(7+(5-2)))=10
(0+(7-(2-5)))=10
(0-((2-5)-7))=10
(0-((2-7)-5))=10
(0-(2-(5+7)))=10
(2×(5+(0×7)))=10
(2×(5+(0÷7)))=10
(2×(5-(0×7)))=10
(2×(5-(0÷7)))=10
(5×(2+(0×7)))=10
(5×(2+(0÷7)))=10
(5×(2-(0×7)))=10
(5×(2-(0÷7)))=10
(5+((0+7)-2))=10
(5+((7-0)-2))=10
(5+((7-2)-0))=10
(5+(0+(7-2)))=10
(5+(0-(2-7)))=10
(5+(7+(0-2)))=10
(5+(7-(0+2)))=10
(5+(7-(2-0)))=10
(5-((0+2)-7))=10
(5-((2-0)-7))=10
(5-((2-7)-0))=10
(5-(0+(2-7)))=10
(5-(0-(7-2)))=10
(5-(2+(0-7)))=10
(5-(2-(0+7)))=10
(5-(2-(7-0)))=10
(7+((0+5)-2))=10
(7+((5-0)-2))=10
(7+((5-2)-0))=10
(7+(0+(5-2)))=10
(7+(0-(2-5)))=10
(7+(5+(0-2)))=10
(7+(5-(0+2)))=10
(7+(5-(2-0)))=10
(7-((0+2)-5))=10
(7-((2-0)-5))=10
(7-((2-5)-0))=10
(7-(0+(2-5)))=10
(7-(0-(5-2)))=10
(7-(2+(0-5)))=10
(7-(2-(0+5)))=10
(7-(2-(5-0)))=10