## Thinking Mathematically (6th Edition)

$0.97 \times 10^{-4} = 9.7 \times 10^{-5}$
Move the decimal point one place to the right to have $9.7$. Then, multiply by $10^{-1}$ (or decrease the exponent of 10 by 1) to retain the original value. $0.97 \times 10^{-4} = 9.7 \times 10^{-4-1}=9.7 \times 10^{-5}$