This is a great resources for teachers and parents who are teaching children to subtract. This product is fun and engaging making it inviting to learners and most importantly making subtraction easier to understand. The individual strips help students concentrate on one number at the time, helping them understand the patterns in subtraction. I have used this product in a math center, as well as for fast finishers. It is also appropriate for some whole class activities, partner activities and assigned for homework to students who are having difficulties with subtraction. Just print, cut and laminate which ever number you wish to practice.. You can also choose to print strips with or without answers.