Solution:
Note that:
- Given equation: 1,200 ÷ x = 0.012
 
Simplify the equation and solve for x.
- 1,200 ÷ x = 0.012
 - => 1,200 × 1/x = 12/1000
 - => 1,200/x = 12/1,000
 - => 1,200,000 = 12x
 - => x = 100,000
 
Since there are five zeros, the term that completes the equation is 10⁵.