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Project Happy Child: 100s Board Worksheets
Use these 100s Boards to have students check for divisibility by 2-12 and for square and prime numbers. Just find the links below the 100s board that has the directions printed right on top of the worksheet.
ClassFlow
Class Flow: Making a Thousand Chart
[Free Registration/Login Required] This flipchart supports Landmarks in the Hundreds, a 3rd grade Investigations unit.