其他書名	Grade 2
出版	Pearson Canada, 2017
ISBN	01345585539780134558554
URL	http://books.google.com.hk/books?id=BjOUtAEACAAJ&hl=&source=gbs_api

註釋"Natalie's dad is competing in a dogsled race in Nunavut. Natalie usually goes with him, but this time she stays home for a very special reason. Strand: number. Big idea: quantities and numbers can be added and subtracted to determine how many or how much. Math focus: add/subtract to 100; compare/order numbers." --