Students continue work on whole number operations and place value. Students will represent numbers up to the thousands in multiple structures. They will refine their addition and subtraction strategies for 2 and 3 digit numbers with regrouping, and use the inverse to check their solutions. Students will also explore estimation using rounding.

Practice addition and subtraction with regrouping at

Click here to take timed tests addition and subtraction facts:

Go to Leon's Math Dojo and Practice

http://streaming.discoveryeducation.com/braingames/iknowthat/Dojo/Dojo.cfm?Topic=singledigitadditionwithrenaming

Leon's Math Dojo 2 digit subtraction:

http://streaming.discoveryeducation.com/braingames/iknowthat/Dojo/Dojo.cfm?Topic=DoubleDigitSubtraction

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Check out the Brainpop Jr video on Estimation and Rounding:

http://www.brainpopjr.com/math/numbersense/rounding/preview.weml

Practice Estimation and Rounding:

*http://pbskids.org/cyberchase/math-games/glowlas-estimation-contraption/

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