conversations.from: human
conversations.value: Can you explain how to solve this math problem: A new condo development has 23 floors. Regular floors have 12 units, whereas penthouse floors have only 2 units. If the top 2 floors are assigned for penthouse units, how many units does this condo have in total?
conversations.from: assistant
conversations.value: If the condo has 23 floors and the top 2 floors are reserved for penthouse then there are 23-2 = 21 floors for regular units
  If a regular floor has 12 units each, then 21 regular floors would have 12*21 = 252 units
  If a penthouse floor has 2 units each, then 2 penthouse floors would have 2*2 = 4 units
  The total units in the property would then be 252 regular + 4 penthouse or 252+4 = 256 units