Unravel the mystery of subtraction and addition! Learn to add and subtract mixed numerals and decimals. Pick up great tips for solving word problems. Add and subtract money and time values, and learn to estimate. Whether you are learning this information for the first time—on your own or with a tutor—or you would like to review your math skills, this book is a perfect choice. And don’t forget to download the FREE WORKSHEETS for even more practice!