The 100-Pound Problem (Math Matters Series)
The 100-Pound Problem (Math Matters Series)
副标题: 100 Pound Problem
ISBN: 9781575650951
出版社: Kane Press
出版年: 2005-01-21
页数: 32
定价: USD 5.95
装帧: Paperback
内容简介
How, in a boat that only holds 100 pounds, can a boy transport himself, a dog, and assorted gear that weighs much more than that?