It looks like you got scientific notation, the exponent tells how how much should we move the decimal points. A positive exponent means we should move it to the right. A negative exponent means that we should move it to the left. In this problem we have this:
[tex]3.54*10^-^5[/tex] So, let's move the decimal place 5 places to the left, our number would be... [tex]=0000354[/tex]