Problem-mathic : mathematical challenge problems with solution strategies /
42
| Main Authors: | , |
|---|---|
| Format: | |
| Published: |
Paloalto, Calif : Creative Pub,
1977
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| Subjects: |
42
| Main Authors: | , |
|---|---|
| Format: | |
| Published: |
Paloalto, Calif : Creative Pub,
1977
|
| Subjects: |