Help plz, Due tomorrow...

Just help me with 2,3, and 4. Dont tell me what it equals. Tell me like for example in number 2, What will be on top the 9. and on 3 what will be on top the 2. For 4, what will be on the bottome for 8.

Help plz Due tomorrowJust help me with 23 and 4 Dont tell me what it equals Tell me like for example in number 2 What will be on top the 9 and on 3 what will be class=