Chapter 1, Problem 31P

Fill in the blanks of the following conversions:

1. $6\times {10}^4=\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}$ $\times {10}^6$
2. $0.4\times {10}^{-3}=$
3. $\times {10}^{-6}$
4. $50\times {10}^5=$ $\times {10}^3=$ $\times {10}^6$

= $\times {10}^9$

1. $12\times {10}^{-7}=$ $\times {10}^{-3}=$ $\times {10}^{-6}$

= $\times {10}^{-9}$