This week we learned all about scientific notation. Science notation is when you take a really big number and move the decimal place all the way until you have only one number left. Once your done with that you want to times the number your left with by ten. Then you count how many places the decimal moved and the amout of times it did is the exponent number you have on the ten. The same can be done for a big number behind the decimal but instead of adding positive exponents to the ten you add negative ones.