Annika hopes to change her best friends' hatred of math by winning a Sudoku contest, but she does not realize how important their lack of mathematical ability is until they make a mistake at the school carnival.
- ISBN10 1250056780
- ISBN13 9781250056788
- Publish Date 28 April 2015 (first published 13 May 2014)
- Publish Status Active
- Out of Print 27 April 2024
- Publish Country US
- Imprint St Martin's Press
- Format Paperback (B-Format (198x129 mm))
- Pages 144
- Language English