Example
Jia's classmates send an average of 85 text messages per day. At this
rate, how many texts would all of the eighth graders in the U.S. send
in a year? There are about 3,500,000 eighth graders in the U.S. Jia
uses her calculator to multiply 85 x 365 x 3,500,000 and gets the
result 1.086E+11. What does this answer mean?
Look at how you can use scientific notation to analyze the answer.
85 x 365 x (3.5 x 10°) = (3.1025 x 104) x (3.5 × 106)
= 1.086 x 1011
E+11 means the exponent on the power of 10 is positive 11.