Why: you'd move the decimal four places to the right. when you move the decimal to the left the number on the top right will be negative, to the left, positive.
If you have a decimal between 0 and 1, the way to translate the question into scientific notation is to count the number of zeros and add one more. This sub answer will determine the power.
Then express the given number as 1 ≤ x < 10
Solution
For your question, the question has 2 zeros. Add 1 more to 2. The power will be -3 on 10
the number after the leading zeros is 12. Twelve expressed as a number between 1 and 10 would be 1.2
