16-challenge

My fellow number-crunchers, Given a bundle of four random numbers, try to calculate them to 16 by using each number once at most with the basic arithmetic operators ( , -, *, and /) in a standard calculator format (order of operations, or PEMDAS, does not apply). Try to solve as many bundles as you can within a minute - the bundles will progressively get more difficult. Five seconds will be awarded each time you answer a bundle correctly, whereas you'll lose five if incorrect. Otherwise, skip the current bundle without being penalized if you're unsure how to solve it. Think you could handle the challenge? Compare scores/achievements with your friends while logged in to Google Play Games! The game is compatible with all phones and tablets. Sound credits: Mike Koenig, Cam, His Self, and KevanGC.