The answer is 8 Order of operations:(Please Excuse My Dear Aunt Sally) Parentheses Exponents Multiplication Division Add Subtract When it comes down to multiplication and division you do whichever comes first , left to right same with add and subtract so.. Step1: 2 squared = 4 Step2: 4/4=1 Step3: 1x10=10 18-10=8 . Final answer is 8