Telling the Time Workbook: 100s of practice problems including elapsed time, start and end times, matching clocks (Whiz Kid Math Series)

Telling the Time Workbook: Volume 2: Matching Clocks to and Elapsed Problems

Elapsed Time Workbook: Practice Problems for Kids: Find the End Time, Start...

Elapsed Time Workbook: Practice Worksheets for Finding Start Time, End and Grade...

Money and Time Math Workbook for Adults: Practice Calculations Problems Including Counting...