Math worksheet for calculating elapsed time using a table format.

To complete the table, we need to find the missing Start Time, End Time, or Elapsed Time for each row.

Here is how we calculate them:
* To find Elapsed Time: Count the hours and minutes from the Start Time to the End Time.
* To find Start Time: Subtract the Elapsed Time from the End Time.
* To find End Time: Add the Elapsed Time to the Start Time.

Let's solve each row step-by-step:

Row 1: Find Start Time.
* End Time: 12:33 P.M.
* Elapsed Time: 1 Hour & 33 Minutes.
* Calculation: Go back 1 hour from 12:33 P.M. $\rightarrow$ 11:33 A.M. Then go back 33 minutes $\rightarrow$ 11:00 A.M.
* Start Time: 11:00 A.M.

Row 2: Find Start Time.
* End Time: 7:35 A.M.
* Elapsed Time: 3 Hours & 15 Minutes.
* Calculation: Go back 3 hours from 7:35 A.M. $\rightarrow$ 4:35 A.M. Then go back 15 minutes $\rightarrow$ 4:20 A.M.
* Start Time: 4:20 A.M.

Row 3: Find Elapsed Time.
* Start Time: 3:00 A.M.
* End Time: 4:34 A.M.
* Calculation: From 3:00 to 4:00 is 1 hour. From 4:00 to 4:34 is 34 minutes.
* Elapsed Time: 1 Hour & 34 Minutes

Row 4: Find Start Time.
* End Time: 10:34 P.M.
* Elapsed Time: 2 Hours & 34 Minutes.
* Calculation: Go back 2 hours from 10:34 P.M. $\rightarrow$ 8:34 P.M. Then go back 34 minutes $\rightarrow$ 8:00 P.M.
* Start Time: 8:00 P.M.

Row 5: Find Elapsed Time.
* Start Time: 10:40 A.M.
* End Time: 2:16 P.M.
* Calculation:
* 10:40 A.M. to 11:40 A.M. = 1 hour
* 11:40 A.M. to 12:40 P.M. = 1 hour (Total 2 hours)
* 12:40 P.M. to 1:40 P.M. = 1 hour (Total 3 hours)
* 1:40 P.M. to 2:16 P.M. = 36 minutes.
* Elapsed Time: 3 Hours & 36 Minutes

Row 6: Find Elapsed Time.
* Start Time: 1:00 P.M.
* End Time: 3:55 P.M.
* Calculation: From 1:00 to 3:00 is 2 hours. From 3:00 to 3:55 is 55 minutes.
* Elapsed Time: 2 Hours & 55 Minutes

Row 7: Find Start Time.
* End Time: 9:46 P.M.
* Elapsed Time: 3 Hours & 26 Minutes.
* Calculation: Go back 3 hours from 9:46 P.M. $\rightarrow$ 6:46 P.M. Then go back 26 minutes ($46 - 26 = 20$).
* Start Time: 6:20 P.M.

Row 8: Find Elapsed Time.
* Start Time: 5:00 P.M.
* End Time: 8:38 P.M.
* Calculation: From 5:00 to 8:00 is 3 hours. From 8:00 to 8:38 is 38 minutes.
* Elapsed Time: 3 Hours & 38 Minutes

Row 9: Find Start Time.
* End Time: 5:00 P.M.
* Elapsed Time: 3 Hours & 40 Minutes.
* Calculation: Go back 3 hours from 5:00 P.M. $\rightarrow$ 2:00 P.M. Then go back 40 minutes. Since there are 60 minutes in an hour, $60 - 40 = 20$. So it is 1:20 P.M.
* Start Time: 1:20 P.M.

Row 10: Find End Time.
* Start Time: 9:40 P.M.
* Elapsed Time: 4 Hours & 44 Minutes.
* Calculation: Add 4 hours to 9:40 P.M. $\rightarrow$ 1:40 A.M. (next day). Add 44 minutes to 1:40 A.M. $\rightarrow$ $40 + 44 = 84$ minutes. Since 84 minutes is 1 hour and 24 minutes, we add that hour to 1:00 A.M. to get 2:00 A.M., leaving 24 minutes.
* End Time: 2:24 A.M.

Final Answer:
| Start Time | End Time | Elapsed Time |
| :--- | :--- | :--- |
| 11:00 A.M. | 12:33 P.M. | 1 Hours & 33 Minutes |
| 4:20 A.M. | 7:35 A.M. | 3 Hours & 15 Minutes |
| 3:00 A.M. | 4:34 A.M. | 1 Hour & 34 Minutes |
| 8:00 P.M. | 10:34 P.M. | 2 Hours & 34 Minutes |
| 10:40 A.M. | 2:16 P.M. | 3 Hours & 36 Minutes |
| 1:00 P.M. | 3:55 P.M. | 2 Hours & 55 Minutes |
| 6:20 P.M. | 9:46 P.M. | 3 Hours & 26 Minutes |
| 5:00 P.M. | 8:38 P.M. | 3 Hours & 38 Minutes |
| 1:20 P.M. | 5:00 P.M. | 3 Hours & 40 Minutes |
| 9:40 P.M. | 2:24 A.M. | 4 Hours & 44 Minutes |