If the small cube or unit is equal to one billion write the
     If the small cube or unit is equal to one billion, write the number the picture below represents.  Which of the following could the pictures above be used to illustrate? Circle all that apply.  a. 12.090  
  
  Solution
First picture shows the number 1.29, and second picture shoes 2.1
Or we can write them as 1.290 and 2.10
We know 1.290 < 2.10
Hence, the correct option is b.

