Verified Answer :

  1. first, multiply 2 by 2. you get 4 >>>>>>(2x2)
    2. then subtract 4 from 16. the answer is 12 >>>>> (16 - 4)
    3. then multiply 8 to 12 >>>>>>>> 8 x 12

    or if you still dont get it: 
     
    8     x      ( 16     -          2    x    2    )
    3.                2.                       1.