How do you write and simplify #1.30 times 10^4 div 6.5 times 10^-5# in scientific notation?
Firstly, I will assume that there were meant to be brackets to indicate 2 numbers being divided:
One method is to write the calculation in fraction form:
Now divide and use laws of indices with the powers of 10. This gives:
Another method is to write the calculation differently:
This leads to the same result as before.