In this book, children progress to two-digit addition while learning the commutative property of addition- an important foundation for future math success. Problems incorporate both horizontal and vertical form addition, which prepares children for practice with three and four-digit addition. Upon completion, your child will be ready for advanced arithmetic!

Topics Covered in this Book:

-Horizontal addition review
-Vertical form addition
-Two-digit plus two-digit addition to 198
-Early three- & four-digit addition
-Addition of three two-digit numbers
-Commutative property of addition
-Patterns & sequencing