number systems

"The mathematical concept of place value is explained using a place value chart, descriptions of how money is notated, and humorous examples from a recipe that a group of monkeys is using to make a gigantic banana muffin."--.

A boy wakes up to find a strange day where everything is even, his mother has two heads, and a field trip turns into a very odd ordeal.

Milli, Geo and Bot use their mighty math skills, including identifying numbers and shapes, in order to save the day.

On cover: A fascinating exploration of the worldwide origins and evolution of numerals and numerical systems.

Describes the evolution of counting and the many ways to count and write numbers.

Uses illustrations of exponentially increasing peas to present the concept of numbers from one to a million, billion, trillion.

Simple text introduces young children to number order, relative magnitudes, and number lines.

Introduces the concept of expanded notation by providing facts about dinosaurs and the periods in which they walked the earth millions of years ago.

Simple text and photographs provide an introduction to ordinal numbers.