Question

What do you do when you divide two numbers written in exponential notation

Answer 1

You add the exponents
remember
$(x^m)(x^n)=x^{m+n}$

so

2 numbers in scientific notation are
$(a*10^m)(b*10^n)=(a)(10^m)(b)(10^n)=(ab)(10^m*10^n)=(ab)(10^{m+n})$


so add them

Answer 2

Subtract the exponents when dividing and add when multiplying