8You are in for hour and hours of great fun when with this Number Fill-Ins Puzzle book.These puzzles are just like crossword puzzles, but with numbers. The object sounds easy: determine where the numbers listed next to each 9x9 grid fit into the puzzle. There are just the right amount of numbers as there are horizontal and vertical entries in the grid, so all numbers fit perfectly. The challenging part: there is only one way to fill all of the numbers in!Your job is to figure out how to fit it all together.With 100 puzzles and a smaller grid, these puzzles will be challenging but most beginning players will be able to figure them out with just a little effort. If you get stuck, the answers are at the back.This is a great gift for anyone that loves crosswords and wants a different type of challenge.