Introduces the principles of the metric system through games, activities, puzzles, and riddles.
- ISBN10 0385136412
- ISBN13 9780385136419
- Publish Date 1 January 1980
- Publish Status Out of Print
- Out of Print 1 June 2011
- Publish Country US
- Imprint Doubleday Books
- Format Hardcover
- Pages 128
- Language English