The workbook contains a range of exercises, including:
* 132 unique worksheets
* Reading the clock, writing the time in words and numerals
* Converting between different units of time (seconds, minutes, hours, days, weeks, months, and years)
* Converting between digital and analog clock formats (12-hour and 24-hour clocks)
* Upwards and downwards time conversion, duration calculation
* Addition and subtraction of time with conversion and carrying/borrowing operations
* Gradually increasing complexity of problems to provide opportunities for students to start from beginner and reach advanced levels deepening their understanding of subtraction
* Each exercise has plenty of practice problems to help students reinforce their learning.
* Answer keys for all problems, allowing students to check their work and learn from their mistakes.
Overall, this workbook is a valuable resource for students in grade 4 looking to build a strong foundation in time conversion and succeed in their mathematical studies.