【メイク10】4,5,7,8を10にする方法





4,5,7,8と四則演算(+−×÷)を使用して10にする方法を紹介します。これはMake10、切符パズルなどと言います。

(ただし1と2を合せて12のような使い方は出来ません。)

43個の解法が見つかりました。


((4+(5+8))-7)=10

((4+5)+(8-7))=10

((4+5)-(7-8))=10

((4+8)+(5-7))=10

((4+8)-(7-5))=10

((4-7)+(5+8))=10

((5+(4+8))-7)=10

((5+7)-(8÷4))=10

((5+8)+(4-7))=10

((5+8)-(7-4))=10

((5-7)+(4+8))=10

((8+(4+5))-7)=10

((8-7)+(4+5))=10

(4+((5+8)-7))=10

(4+(5+(8-7)))=10

(4+(5-(7-8)))=10

(4+(8+(5-7)))=10

(4+(8-(7-5)))=10

(4-((7-5)-8))=10

(4-((7-8)-5))=10

(4-(7-(5+8)))=10

(5+((4+8)-7))=10

(5+(4+(8-7)))=10

(5+(4-(7-8)))=10

(5+(7-(8÷4)))=10

(5+(8+(4-7)))=10

(5+(8-(7-4)))=10

(5-((7-4)-8))=10

(5-((7-8)-4))=10

(5-((8÷4)-7))=10

(5-(7-(4+8)))=10

(7+(5-(8÷4)))=10

(7-((8÷4)-5))=10

(8+((4+5)-7))=10

(8+(4+(5-7)))=10

(8+(4-(7-5)))=10

(8+(4÷(7-5)))=10

(8+(5+(4-7)))=10

(8+(5-(7-4)))=10

(8-((7-4)-5))=10

(8-((7-5)-4))=10

(8-(4÷(5-7)))=10

(8-(7-(4+5)))=10



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