Showing Results for multi-digit--old

In 2012, an 80 million-year-old dinosaur was discovered, and you can learn all about this 20-foot, 2-ton horned herbivore.

How can you tell how old a tree is? Look no further! This worksheet gives a basic overview of tree rings for your little scientist.

Help your 2nd grader crack the code using triple digit addition and subtraction to find out what parts of camels can be used to make some tasty dishes.