decimal system

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

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

Uses the setting of a hardware store to teach children about place value.

Explains the math concept of expanded notation, and uses expanded notation to plan an imaginary trip around the world.

"The mathematical concepts of money, percentages, and decimals are introduced as children plan for a lemonade stand using the distributive property and algorithms. Readers learn about sales tax, adding and subtracting decimals, and profits through different scenarios. Includes a discover activity, history connection, and mathematical vocabulary introduction"--Provided by publisher.

Introduces fractions, decimals, and percents through descriptions of things found at a county fair; and includes instructions for a game.

Explores counting by powers of ten all the way up to the largest numbers that exist.