Strategies for adding within 1,000 (K-A)

S#	Lecture	Course	Institute	Discipline
1	Adding 3-digit numbers (no regrouping) (K-A)	Strategies for adding within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
2	Addition using groups of 10 and 100 (K-A)	Strategies for adding within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
3	Breaking apart 3-digit addition problems (K-A)	Strategies for adding within 1,000 (K-A)	Khan Academy	Basic and Health Sciences

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