In order to have fun at a game of tug-of-war, forest animals balance the teams by using a see-saw. Includes nonfiction math notes for meanings of equal.

What does it mean to be equal? Mouse and her friends want to play tug-of-war but they can't figure out how to make teams that are equal. Nothing works until Mouse starts thinking mathematically. Wonderful illustrations capture Mouse and her animal friends from whiskers to tails.

As Zero searches to find his place, he learns of his additive and multiplicative identities, and then he establishes place value.

Farmer Worth discovers that a special tree on his farm produces different kinds of money, depending on what animal fertilizer he uses.

A counting book in which a little monster's birthday party gets out of control.

Two mice have fun playing on a teeter-totter, but as more and larger friends join them, it becomes increasingly difficult to stay balanced.

Equal parts action and humor add up to a wholly entertaining introduction to simplifying fractions, in this one-of-a-kind math picture book story. When a valuable fraction goes missing, George Cornelius Factor (a.k.a. GCF) vows to track it down. Knowing that the villainous Dr. Brok likes to disguise his ill-gotten fractions, G.C.F. invents a Reducer—half ray gun, half calculator— that strips away the disguise, reducing the fraction to its lowest common denominator and revealing its true form. With the Reducer in hand, George seeks out Dr. Brok in hopes of retrieving the missing fraction. David Clark’s illustrations are packed with humorous details as well as clearly defined fractions and their corresponding reduction equations.

When Sir Cumference and his wife, Lady Di of Ameter, host a massive surprise birthday party for the king, they must figure out a way to quickly count all the guests who are in attendance.

Primary math concepts are introduced using creative examples, easy-to-understand text and art illustration.

When the queen of her bugs demands that her army march in even lines, Private Joe divides the marchers into more and more lines so that he will not be left out of the parade.