This sequel to Kumon’s My Book of Numbers 1-30 will help children learn how to read and write numbers confidently up to 120. By practicing numbers in numerical order, such as 9-10 and 99-100, children gradually grasp the concept of decimal position. Recognition of the decimal place is crucial for the later acquisition of addition skills.

8 ¼ × 11 ⅔ inches. paperback. 80 pages. full color.