DK Publishing The complete home-study program to help children practice the essential math skills they learn in school. Matches the math curriculum so your children will reach their full potential in school -- and on important standardized tests! The successful way to improve your child's math. These workbooks have been compiled and tested by a team of math experts to increase your child's confidence, enjoyment, and success at school. Fifth Grade: Provides practice at all the major topics for Grade 5 with emphasis on addition and subtraction of fractions and decimals. Includes a review of Grade 4 topics. Includes Times Tables practice.