Children'sScience & Mathematics
Calculator riddles
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About this book
Each riddle has a answer that readers reach by working out a set of related math problems. Once the results are typed into a calculator, the display is flipped over so the numbers read as letters, revealing the solution.
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Book Details
- ISBN
- 9780823411863
- Author
- David A. Adler
- Publisher
- Unknown Publisher
- Genres
- Children'sScience & Mathematics
About the author
David A. AdlerView profileMedia & Extras
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