Here's how to get there:
1. Move the decimal point: Start with 135,000. Move the decimal point to the left until you have a number between 1 and 10 (which is 1.35).
2. Count the moves: You moved the decimal point five places to the left.
3. Express as a power of 10: Since you moved the decimal point to the left, the power of 10 is positive. So, 135,000 is expressed as 1.35 x 105.
