Groovy Baby!

Whoa?! Where am I? Last thing I knew I was sitting in math class and now I am stuck in the 70's!! I look around the room and everyone has long hair, they are wearing bell bottoms and everyone is saying Groovy and Peace Out! It looks like I am gonna have to use the order of operations that I have learned in math class to get back to my current date and time.... It looks like there is a series of locks too.... Welp, I better be cool and get started so that I am not stuck in the 70's for good, that would be far out! I better move quick, I am already sounding like I'm from the 70's! Catch ya on the flip side! Can you dig it?!