Strategies for adding 2- and 3-digit numbers (K-A)

S#	Lecture	Course	Institute	Discipline
1	Estimating adding and subtracting 3-digit numbers (K-A)	Strategies for adding 2- and 3-digit numbers (K-A)	Khan Academy	Basic and Health Sciences
2	Adding and subtracting on number line-video (K-A)	Strategies for adding 2- and 3-digit numbers (K-A)	Khan Academy	Basic and Health Sciences
3	Addition using groups of 10 and 100-video (K-A)	Strategies for adding 2- and 3-digit numbers (K-A)	Khan Academy	Basic and Health Sciences
4	Breaking apart 3-digit addition problems- video (K-A)	Strategies for adding 2- and 3-digit numbers (K-A)	Khan Academy	Basic and Health Sciences
5	Solving 3-digit addition in your head-video (K-A)	Strategies for adding 2- and 3-digit numbers (K-A)	Khan Academy	Basic and Health Sciences

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