Written and reviewed by math specialist, this beautiful full-color workbook teaches and reinforces the math skills that second graders need the most. Exercises include adding and subtracting numbers 0-18, adding and subtracting three-digit numbers, regrouping, renaming, introductory multiplication and more. Principles and Standards for School Mathematics published by the National Council of the Teachers of Mathematics (NCTM), was used as a guide in writing this book.