本書では、2桁の足し算を学びながら、将来算数が得意になるために重要な基礎となる「足し算の可換性」を身につけます。また、3桁、4桁の足し算ができるように、横と縦の足し算も取り入れています。このワークブックを終えれば、お子さまはさらに難しい算数を学ぶ準備が整います！
本書で扱うトピック
-横の足し算の復習
-縦の足し算
-198までの2桁＋2桁の足し算
-初歩の3桁と4桁の足し算
-3つの2桁の数の足し算
-足し算の可換性
-パターンと順序

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

8 1/2 x 11 inches. paperback. 96 pages. full color.
Ages 6-8, 2nd Grade, Math Skills Addition