1.

図書
図書
1. Heath elementary mathematics ([1st level] - [6th level])
Clyde A. Dilley, Walter E. Rucker, Ann E. Jackson
出版情報: Lexington : D.C. Heath, c1972
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2.

図書
図書
2. Heath mathematics. Teacher's annotated ed (Level 7 ; Level 8)
Gerald R. Rising, Sigmund A. Smith ; consulting authors, Clyde A. Dilley, Walter E. Rucker, Russell E. Zwoyer
出版情報: Lexington, Mass. : D.C. Heath, c1973
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目次情報:
Level 7. Numbers, patterns, projects
Level 8. Number, structure, space
Level 7. Numbers, patterns, projects
Level 8. Number, structure, space