Marvelous Math Sites

These are some of my favorite math sites to help reinforce math skills that are taught at 2nd grade. If a link does not work for you, please let me know.
Patterns Addition & Subtraction Money
•  People Patterns •  Addition Matho •  Counting Change
•  Guess My Button •  Subtraction Hidden Picture •  Counting Money
•  Math Baseball
•  Sum Sense
•  ArithmATTACK!
Time
Geometry •  Bang on Time
•  Tangram Designs •  Stop the Clock
Graphing, Data, & Probability
Fractions Resources
•  Pattern Block Fractions •  Virtual Manipulatives
Measurement