Number Fill-Ins: 60 Brain Sharpening Puzzles
Number Fill-In Puzzles, Volume 1, 90 Puzzles
Number Fill-Ins: 80 puzzles in large font! (Volume 1)
Number Fill-ins: 60 Brain Sharpening Puzzles, Volume 2
Number Fill-in Puzzles: 80 puzzles in large font!
Number Fill-Ins - Volume 1: 100 Fun Crossword-style Fill-In Puzzles With Numbers Instead of Words (Number Puzzle Fun)
Number Fill Ins, Volume 1: 105 Number Fill-In Puzzles