(2 x 1) + (6 x 1/1,000) in standard form

Question

I am having a hard time trying to figure out the best and easiest way possible to show my daughter how to write this number in standard form. 

Answer 1

(2 x 1) + (6 x 1/1,000)

  2   + (6)(0.001)

  2   + 0.006

  2.006