Less than nothing is really something /

Explains in simple terms the concept of positive and negative numbers.

Bibliographic Details
Main Author:	Froman, Robert, 1917-
Other Authors:	Madden, Don, 1927-
Format:	Book
Language:	English
Published:	New York : Crowell, [1973]
Series:	Young math book.
Subjects:	Arithmetic > Juvenile literature. Numbers, Natural > Juvenile literature. Numbers, Negative > Juvenile literature. Arithmetic.

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