- - Step 1: Move the decimal point to the right, until you get greater then 1 and less than 10. In this case we moved it till we got 6.65. - - Step 2: Count how many times you moved the decimal over: In this case, we moved it 4 times. - - Step 3: All you have to do now is chose which one has 6.65 over -4. (We are saying negative because when you move it to the right, it becomes negative.) Final answer: A