Some Math tricks you can use.
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SAVING THIS FOR BACK TO SCHOOL. Keep it coming ultrafacts
Today is the day Marty McFly goes to the future!
Where is my hoverboard
I just have to reblog this because this is LITERALLY a once in a lifetime thing and I need it on my blog.
I love the look on his face when he gets to the smallest one.
I would get a Wii U for this.
These are friggin’ awesome.
oh god that one before last
Jesus fucking christ