Addition - Learning addition can be fun and easy with this new music CD and companion workbook. Includes 12 songs that teach addends 0 to 9 and doubles! The 48-page full-color workbook includes addition practice sheets, puzzles, a 10-sided die for use with 7 addition learning games, time tests and more! Ages 3-7. Subtraction - Facts through 18 are taught with creative strategies and fun songs. From "Fact Families" to "There's No Doubt About It," kids will get in rhythm to learn subtraction facts and problem solving skills. 48 Full-Color Pages. Ages 4-8.