How do you write 4 hundred thousand in scientific notation?
First let's put numbers on words. 4 hundred thousands is 400 000. Scientific notation have to be compound with a number between 0 and 10, completed with zeros. So We have :
see answer below;
counting the number of times you move the decimal points, it would give you the exponent value, for example;
If you are counting to the left, it means that the exponent value would be positive, and then counting to the right the exponent value would be negative..