Dinosaurs were amazing reptiles. These beasts existed during the Mesozoic era. You've probably heard of dinosaurs like Brontosaurus and Tyrannosaurus Rex. But what about Titanosaurus and Rhinorex? Or, Kosmoceratops? How about Allosaurus, and Utahraptor? Learn all about these extreme dinosaurs as you compare and round decimals This nonfiction reader seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math...