Kids love learning basic subtraction facts by performing along with D.J. Doc Roc. Positive lyrics and super-cool rap music make these learning songs irresistible for mastering subtraction facts. Differences from 18 are easy to learn and remember. Several of the “subtract rap” songs feature delayed answers, allowing students to check their progress. Perfect for learning subtraction facts at home or in the classroom.With Subtraction Rap Audio, you get an illustrated activity book that features lyrics to the songs and fun activity pages, including our very popular math mazes. Teachers and parents have permission to photocopy the activity pages for instructional use. These activities are perfect for reinforcing the subtraction drill and practice that comes from using the audio program.