High School is a place where we are suppose to learn the fundamental skills that we are going to need in life. It’s also a place where we start to find ourselves, decide what college to go to or what career path we want to head down.

However, after graduation a lot of people start to realize how unprepared they for the real world. Life hacker set out and put together a list of thing we should have learned in high school but didn’t.

Those things include learning how to split complicated bills at a restaurant, the true cost of home ownership and mortgages, the art of haggling and negotiation how to build your credit and good time management. You can find the full list of things we should have learned in high school at lifehacker.com.