Tina Thoburn Libri

Includes instruction and exercises in whole numbers, multiple-step problems, factors, fractions, measurement systems, ratio, proportion, percent, and probability and statistics.

This is one in a series called Britannica's Pre-School Library - First Adventures in Learning Program.

Includes more than 2500 words with pictorial definitions arranged within broad alphabetical categories such as astronauts, family, and medical center.