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

S#	Lecture	Course	Institute	Discipline
1	Adding and subtracting on number line (K-A)	Strategies for subtracting within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
2	Subtracting 1, 10, or 100 (K-A)	Strategies for subtracting within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
3	Subtracting 1s, 10s, and 100s (K-A)	Strategies for subtracting within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
4	Subtracting 3-digit numbers (no regrouping) (K-A)	Strategies for subtracting within 1,000 (K-A)	Khan Academy	Basic and Health Sciences
5	Subtracting with place value blocks (regrouping) (K-A)	Strategies for subtracting within 1,000 (K-A)	Khan Academy	Basic and Health Sciences

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