Full Text from JSTOR Case of the missing nines and how it grew.
| Title: | Case of the missing nines and how it grew. |
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| Authors: | McDonald, Sam |
| Source: | Mathematics Teacher; October 1973, Vol. 66, p555-559, 5p |
| Database: | Education Source |
| ISSN: | 00255769 |
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| Published in: | Mathematics Teacher |
| Language: | Undetermined |