Meet Rookie, the rook, on THE MATH PLANET!
This video explains one of the strategies for adding within 100.
Rookie illustrates how to add tens & ones on a hundred chart.
To see more examples on the lesson, check this video:
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To learn how to subtract tens & ones on a hundred chart, check this video:
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#grade2, #add, #hundredChart, #savvasRealize,
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