Examines how scientists use number sense to find answers, explains how benchmarks are helpful, describes situations in which mental math can help, and shows how to judge the reasonableness of answers to everyday problems involving math.
- ISBN10 0792245911
- ISBN13 9780792245919
- Publish Date 25 January 2007
- Publish Status Active
- Publish Country US
- Imprint National Geographic Society
- Format Paperback (US Trade)
- Pages 24
- Language English