subtraction

A simple introduction to the mathematical concept of regrouping to help early learners with addition and subtraction skills, including explained sample problems and related activities.

Teaches young readers about threatened and endangered animals and how people can help them, through rhyming verse and subtraction problems.

Simple text and photographs present the adding and subtracting of a variety of bugs.

Presents addition and subtraction story problems involving lollipops, taffy, gumballs, peppermints, fudge, and other types of candy.

Includes an assortment of activities and illustrations to help explain the concept of subtraction.

Teaches addition and subtraction by using an illustrated story about construction machines.

Counting down from twelve to zero, the reader learns about some of the fish found on the Great Barrier Reef and the threats to their continued existence.

One by one, ten energetic puppies find important jobs as dogs who help people in different ways, including by pulling sleds and saving swimmers.

A youngster contemplates many number and counting problems throughout the day, at home and at school.

As six monsters play a wild game of musical chairs, readers learn to subtract--one chair at a time.