Over 400 Problems & Step-by-Step Instructions to Improve Decimal Skills. From changing decimals to fractions to identifying place values, our practice-packed book gives students the drill they need to get comfortable with decimals! Drill & Practice: Decimals is filled with over 400 problems featuring easy-to-follow instructions to reinforce the skills covered in each of the 10 sections. Additional activities include fun mazes, puzzles, and matching exercises. 48 pages.