Welcome to Volume 4!
Inside you will find 35 Number Fill In Puzzles to solve. In this volume, you will use Hexadecimals. There are 420 Hexadecimals (4, 6, 8 digits or 2, 3, 4 bytes) are awaiting to be filled into the crossword-style cells. The answers are provided at the back of the book.
This activity book is perfect for yourself to fill your leisure time or as a gift to your loved one.
Take a pencil and test your puzzle solving skill today!