Buzz·Posted on Apr 20, 2019If You Can Do 7/10 Of These Math Problems In Your Head, We'll Be Impressed!Calling all mathletes!by Mike SpohrBuzzFeed StaffLinkFacebookPinterestTwitterMailBuzzFeed Quiz Party! Take this quiz with friends in real time and compare resultsCheck it out! OK, mathletes! It's time to show off your skills. Just remember — no calculators! You have to do these in your head!