Question

How do you calculate `9.23times10^-4 - 7.85times10^-3`?

Answer 1

`-6.927xx10^(-3)`

Explanation:

First, you have to put both numbers with the same power, and do the calculation applying the distributive property:

`9.23xx10^(-4)-7.85xx10^(-3)=0.923xx10^(-3)-7.85xx10^(-3)`

`=(0.923-7.85)xx10^(-3)=-6.927xx10^(-3)`