Sideways Arithmetic From Wayside School

Infobox Book
name = Sideways Arithmetic From Wayside School
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image_caption =
author = Louis Sachar
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country = United States
language = English
series = Sideways Stories From Wayside School
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genre = Fiction
publisher = Scholastic Press
release_date = 1989
media_type = Print
pages = 89 pp
isbn = ISBN 0590457268 (paperback)
preceded_by = Wayside School is Falling Down "(1989)'
followed_by = More Sideways Arithmetic From Wayside School "(1994)'

"Sideways Arithmetic From Wayside School" is a children's novel by Louis Sachar in the Sideways Stories From Wayside School series. The book primarily contains mathematical and logical puzzles for the reader to solve.

The book introduces Sue, a new student in Mrs. Jewls's class. She is bewildered to discover that the arithmetic lessons involve adding words instead of numbers. This initiates a series of verbal arithmetic puzzles in both addition and multiplication. The book contains other kinds of puzzles. One kind involves Mrs. Jewls having trouble filling out report cards because she doesn't have all the grades. Another category presents the reader with "true or false" tests in which the assertions refer to themselves.