(ただし1と2を合せて12のような使い方は出来ません。)
23個の解法が見つかりました。
((3+5)÷(4÷5))=10
((4×5)÷(5-3))=10
((4-3)×(5+5))=10
((5×(3+5))÷4)=10
((5+5)×(4-3))=10
((5+5)÷(4-3))=10
((5÷4)×(3+5))=10
(4×(5÷(5-3)))=10
(4÷((5-3)÷5))=10
(5×((3+4)-5))=10
(5×((3+5)÷4))=10
(5×(3+(4-5)))=10
(5×(3-(5-4)))=10
(5×(4+(3-5)))=10
(5×(4-(5-3)))=10
(5×(4÷(5-3)))=10
(5+(5×(4-3)))=10
(5+(5÷(4-3)))=10
(5-(5×(3-4)))=10
(5-(5÷(3-4)))=10
(5÷((5-3)÷4))=10
(5÷(4÷(3+5)))=10