Final answer:
Steve practiced for 40 minutes on Tuesday, which is calculated by subtracting the extra 32 minutes he practiced on Monday from the total of 72 minutes.
Step-by-step explanation:
If Steve practiced the piano for 72 minutes on Monday and this was 32 minutes longer than he practiced on Tuesday, then to find out how long he practiced on Tuesday, we need to subtract those extra 32 minutes from Monday's practice time.
So, the practice time on Tuesday is:
72 minutes (Monday's practice time) - 32 minutes (extra time) = 40 minutes (Tuesday's practice time).
Therefore, Steve practiced for 40 minutes on Tuesday.