Basic addition and subtraction (K-A)

S#	Lecture	Course	Institute	Discipline
1	Add and subtract: pieces of fruit (K-A)	Basic addition and subtraction (K-A)	Khan Academy	Basic and Health Sciences
2	Basic addition (K-A)	Basic addition and subtraction (K-A)	Khan Academy	Basic and Health Sciences
3	Basic subtraction (K-A)	Basic addition and subtraction (K-A)	Khan Academy	Basic and Health Sciences
4	Relating addition and subtraction (K-A)	Basic addition and subtraction (K-A)	Khan Academy	Basic and Health Sciences

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