登入
選單
返回
Google圖書搜尋
The Day the Numbers Disappeared
Leonard Simon
Jeanne Bendick
出版
Whittlesey House
, 1963
URL
http://books.google.com.hk/books?id=fiENAQAAMAAJ&hl=&source=gbs_api
註釋
A teacher and his class have fun discovering the importance of numbers, their history, the principles of various counting and numbering systems, and the basic concept of "place value" in arithmetic.
