【メイク10】2,5,7,7を10にする方法





2,5,7,7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。)

56個の解法が見つかりました。


((2×(5×7))÷7)=10

((2×5)×(7÷7))=10

((2×5)+(7-7))=10

((2×5)-(7-7))=10

((2×5)÷(7÷7))=10

((2×7)×(5÷7))=10

((2×7)÷(7÷5))=10

((2-7)×(5-7))=10

((2÷7)×(5×7))=10

((5×(2×7))÷7)=10

((5×7)×(2÷7))=10

((5×7)÷(7÷2))=10

((5-7)×(2-7))=10

((5÷7)×(2×7))=10

((7×(2×5))÷7)=10

((7+(2×5))-7)=10

((7-2)×(7-5))=10

((7-5)×(7-2))=10

((7-7)+(2×5))=10

((7÷7)×(2×5))=10

(2×((5×7)÷7))=10

(2×((5+7)-7))=10

(2×(5×(7÷7)))=10

(2×(5+(7-7)))=10

(2×(5-(7-7)))=10

(2×(5÷(7÷7)))=10

(2×(7×(5÷7)))=10

(2×(7+(5-7)))=10

(2×(7-(7-5)))=10

(2×(7÷(7÷5)))=10

(2÷((7÷5)÷7))=10

(2÷((7÷7)÷5))=10

(2÷(7÷(5×7)))=10

(5×((2×7)÷7))=10

(5×((2+7)-7))=10

(5×(2×(7÷7)))=10

(5×(2+(7-7)))=10

(5×(2-(7-7)))=10

(5×(2÷(7÷7)))=10

(5×(7×(2÷7)))=10

(5×(7+(2-7)))=10

(5×(7-(7-2)))=10

(5×(7÷(7÷2)))=10

(5÷((7÷2)÷7))=10

(5÷((7÷7)÷2))=10

(5÷(7÷(2×7)))=10

(7×((2×5)÷7))=10

(7×(2×(5÷7)))=10

(7×(2÷(7÷5)))=10

(7×(5×(2÷7)))=10

(7×(5÷(7÷2)))=10

(7+((2×5)-7))=10

(7-(7-(2×5)))=10

(7÷((7÷2)÷5))=10

(7÷((7÷5)÷2))=10

(7÷(7÷(2×5)))=10



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