Numbers Old and New

Numbers Old and New

The Reason Why Series
by Irving Adler, Ruth Adler, Peggy Adler (Illustrator)
©1960, Item: 89787
Library Binding, 48 pages
Used Price: $4.00 (1 in stock) Condition Policy

From the time we first learn to count past 2, we use numbers all our lives. Here is a book that shows the fun and fascination of numbers as well as their usefulness:

  • What numbers really mean
  • Why we count by 10s instead of by 2s, or 5s, or 12s, as other people have done
  • How we do count by 60s for a certain purpose
  • Who first thought of using a fraction to mean part of a whole
  • How numbers can be drawn as triangles, rectangles, and other shapes
  • How to multiply on your fingers
  • How to make number cards for "mind-reading" and use playing cards for a guessing game

Jacket design by Gil Etheredge

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