CK-12 Foundation
Ck 12: Elem Math: Comparing Values of Two Numbers
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are presented with two numbers up to 1,000 which they must compare using their knowledge of place value. Includes video...
NumberNut
Number Nut: Numbers and Counting: Counting to 1,000
Follow the steps in the examples for place value to the thousands place and then practice the skills with the two interactive activities.