Train your brain while having plenty of fun with 80 number fill in puzzles. You will find hours of entertainment as you complete all these challenging puzzles. Complete with number clue and answers at the back. The book series were designed and sized to be taken on the go. They can be enjoyed on the train on your way to work or in the car on your yearly road trip. Don't let those travel times go to waste! Grab a copy now and start enjoying your morning commute!