Skip to content
Close menu
Home
New & Bestsellers
New Releases
Adult Coloring Books
Dover Thrift Editions
Popular Series
Coming Soon
Browse Books
Dover Coloring Books
Creative Haven
Adult Coloring Books
Children's Coloring Books
Literature
Dover Thrift Editions
Dover Bookshelf
Fiction
Mystery, Crime, & Thrillers
Science Fiction & Fantasy
Graphic Novels & Comics
Poetry
Plays
More Nonfiction
Ixia Press
Calla Editions
Children's Books
Children's Coloring Books
Children's Activity Books
Dover Evergreen Classics
Children's Thrift Classics
More Children's Literature, Storybooks, & Picture Books
Activity & Crafts
Little Activity Books
Crafts
Puzzles, Games, & Magic
More Nonfiction
Music & Performing Arts
Mind, Body, Spirit
Math & Science
Art, Architecture, Design, & Fashion
Holidays & Events
Stationery
eBooks
Shop All Categories
Coloring Books
Creative Haven
More Adult Coloring
Flowers & Nature
History & Educational
Animals & Sea Life
Designs & Patterns
Children's Coloring
More Coloring Books
Dover Thrift Editions
Fiction
Nonfiction
Poetry
Plays
Study Editions
Sale
Log in
Facebook
X
Pinterest
Instagram
YouTube
Home
New & Bestsellers
New Releases
Adult Coloring Books
Dover Thrift Editions
Popular Series
Coming Soon
Browse Books
Dover Coloring Books
Creative Haven
Adult Coloring Books
Children's Coloring Books
Literature
Dover Thrift Editions
Dover Bookshelf
Fiction
Mystery, Crime, & Thrillers
Science Fiction & Fantasy
Graphic Novels & Comics
Poetry
Plays
More Nonfiction
Ixia Press
Calla Editions
Children's Books
Children's Coloring Books
Children's Activity Books
Dover Evergreen Classics
Children's Thrift Classics
More Children's Literature, Storybooks, & Picture Books
Activity & Crafts
Little Activity Books
Crafts
Puzzles, Games, & Magic
More Nonfiction
Music & Performing Arts
Mind, Body, Spirit
Math & Science
Art, Architecture, Design, & Fashion
Holidays & Events
Stationery
eBooks
Shop All Categories
Coloring Books
Creative Haven
More Adult Coloring
Flowers & Nature
History & Educational
Animals & Sea Life
Designs & Patterns
Children's Coloring
More Coloring Books
Dover Thrift Editions
Fiction
Nonfiction
Poetry
Plays
Study Editions
Sale
Log in
Search
Site navigation
Cart
Search
"Close (esc)"
Free Shipping on Orders of $25 or More
Eugene P. Northrop. Introduction by Daniel S. Silver
Filter
Close menu
Format
Paperback
eBook
Age group
Grade Level
Subject
GAMES / Puzzles
Series
dover-math-games-and-puzzles
Format
Paperback
eBook
Age group
Grade Level
Subject
GAMES / Puzzles
Series
dover-math-games-and-puzzles
Filter
2 products
Sort
Sort
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
Riddles in Mathematics
eBook
$12.95
Riddles in Mathematics
Paperback
$12.95
"Close (esc)"
