$10^2$  

 $10^3$  

When multiplying by the powers of ten we move the decimal to the right.

 $1.09\ x\ 10^3$  

5.8 x 100

6.2 x 1

 $0.78\ x\ 10^2$  

 $45.1\ x\ 10^3$  

7.44 x 1,000

6.62 x 100

8.7 x 10