Using Decimal Squares®, kids will learn important mathematical concepts and while having fun! The guide leads them in the relating of fractions, decimals and percents, through the concepts of equalities, approximations, and estimation. Learners use mental calculation and make comparisons using hands-on materials. This 64 page guide includes suggestions, answers and reproducible worksheets. National Standards Correlation sheets are included. Grades 5-9. Ages 10-14.