This Large Print Number Fill-Ins book is Volume 3 with 108 all new number fill in puzzles to enjoy keeping your mind active and stimulated while having hours of challenging fun. Great for all ages. The 108 number fill ins are easy to read and write on, printed in Extra Large font of 20-point type , and have (one) 1 puzzle per 8-1/2 by 11-inch page with grouped number sets printed below each fill in number puzzle. One (1) single-digit starter clue number in every other puzzle inside (if you want to use it as a starting point). Even-numbered puzzles have a single-digit starter (54 puzzles) and odd-numbered puzzles have no starter in the other 54 puzzles. This number fill ins book has a total of 108 fill-in puzzles for hours of mind challenging entertainment. Using logical thinking and reasoning skills to fill in number sets from the provided lists into the crossword-style puzzle grids also improves cognitive ability for all ages. These number fill in puzzles have 3-digit to 8-digit number set clues. Number sets average around 30 per puzzle to find where to place them in the crossword format puzzle grid. If you are new to number fill ins, solving a number fill in puzzle amounts to searching for numbers of a certain length that need to go in specific places in the puzzle grid to fill all open white (box) spaces. If you could use some help along the way, you can always take a look at the Solutions in the back of this Large Print Number Fill In Puzzle Book .