Adding
http://www.education.com/games/first-grade/addition/
Subtracting
http://www.education.com/games/first-grade/subtraction/
Greater than or less than
http://www.education.com/games/less-than-greater-than/
Number Sense
Numbers 1-10
|
http://www.education.com/games/first-grade/numbers-0-10/
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Numbers 11-20
|
http://www.education.com/games/first-grade/numbers-11-20/
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2 digit numbers
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http://www.education.com/games/first-grade/two-digit-numbers/
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Geometry/Measurement
http://www.education.com/games/first-grade/measurement/
http://www.education.com/games/first-grade/geometry/
Telling Time
http://www.education.com/games/first-grade/time/