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Covers number systems, basic functions, measurement, geometry, money, graphs, statistics, probability, and computers.

Covers each period, including events and individuals, the accomplishments of various peoples, and religion

Covers biology, zoology, botany, the environment, the Earth, astronomy, and physics.

With a refreshing new design and fully updated information, the Everything You Need to Know About... series is a first-rate homework reference guide for 4th- 5t