180°-54°36′18〃=

180°-54°36′18〃=


180°-54°36'18''
=179°59'60''-54°36'18''
=125°23'42''



66×65分之9 25×22分之7 127×126分之5 5分之4÷4-4÷5分之4要簡便！12


66×65分之9 =（65+1）×9/65=65×9/65+1×9/65=9+9/65=9又9/6525×22分之7 =（22+3）*7/22=22*7/22+21/22=7+21/22=7又21/22127×126分之5=（126+1）*5/126=126*5/126+5/126=5+5/126=5又5/1265分之4÷4-4÷5分之4=1/5-5=…

Elden Ring Premiere

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