Chapter 1, Problem 22P

Perform the following operations to hundredths—place accuracy:

1. $\left(50,000\right)\left(0.002\right)$
2. $2200\times 0.002$
3. $\left(0.000082\right)\left(1.2\times {10}^6\right)$
4. $\left(30\times {10}^{-4}\right)\left(0.004\right)\left(7\times {10}^8\right)$