"JUVENILE NONFICTION Animals Endangered." . . . . "Especies en peligro de extinción Literatura juvenil." . . "Subtracción Literatura juvenil." . . "Electronic books" . . . "What's the difference? an endangered animal subtraction story"@en . . . . . . "Threatened and endangered animals are found all over the world, in all different types of habitats. Readers celebrate the huge difference that caring people make for these animals while practicing subtraction skills. Each animal is presented through a clever rhyming verse and subtraction problem. Includes \"For Creative Minds\" section." . "Juvenile works" . "Juvenile works"@en . "Threatened and endangered animals are found all over the world, in all different types of habitats. Readers celebrate the huge difference that caring people make for these animals while practicing subtraction skills. Each animal is presented through a clever rhyming verse and subtraction problem. Includes \"For Creative Minds\" section."@en . "What's the difference? : an endangered animal subtraction story"@en . . . . . . . . "¿Cuál es la diferencia? una historia con restas sobre los animales en peligro de extinción" . . . "Electronic books"@en .