Chapter 1, Problem 27P

Perform the following operations to hundredths-place accuracy:

1. $\frac{{\left(300\right)}^2\left(100\right)}{3\times {10}^4}$
2. $\left[{\left(40,000\right)}^2\right]\left[{\left(20\right)}^{-3}\right]$
3. $\frac{{\left(60,000\right)}^2}{{\left(0.02\right)}^2}$
4. $\frac{{\left(0.000027\right)}^{1/3}}{200,000}$
5. $\frac{\left[{\left(4000\right)}^2\right]\left[300\right]}{2\times {10}^{-4}}$
6. $\left[{\left(0.000016\right)}^{1/2}\right]\left[{\left(100,000\right)}^5\right]\left[0.02\right]$
7. $\frac{\left[{\left(0.003\right)}^3\right]{\left[0.00007\right]}^{-2}\left[{\left(162\right)}^2\right]}{{\left[\left(200\right)\left(0.0008\right)\right]}^{-1/2}}$
8. (a challenge)