Question

What is 2.1 x 10^6 + 6.2 x 10^7 in scientific notation

Answer 1

2100000 + 62000000

Step-by-step explanation:

You move the decimal place to the right or left acording to the exponent (right if the exponent in positive, left of the exponent in negative.) Ex: if you're solving for 6.2*10^7 you move the decimal 7 places to the right.

Hope this helped,

-Kiddoo :)