Description of Two Plus Two is not Five by Longevity
The 2006 Evvy award winner, Two Plus Two Is Not Five, is different from other addition and subtraction books because it teaches children a way to remember the facts using easy-to-learn methods and tricks, and offers many pages for practice and review. Parents and teachers can use this workbook to teach children in any grade level. This supplementary workbook will benefit all children who still need to memorize the addition and subtraction facts