I am very nervous because my final is tomorrow and we barely went over scientific notation and there will be a problem similar to this one we already took on the test. Here was my attempt at it, I was given the answer in class when the professor graded it but I do not understand how to get the answer. Here goes:

**The earth is 150,000,000 km from the Sun. There are 1000 meters in a km. How many meters (expressed in scientific notation) is the earth from the sun?**

Now, the first number converted to scientific notation is 1.5x10^8. And the amount of meters in a km is 1.0x10^3. The professor gave the answer of 1.5x10^4 but I do not see how she got that. My incorrect answer was 1.5x10^5. Please help, I need all the points on the final that I can get and this should be an easy one :sad: