Add within 20

S#	Lecture	Course	Institute	Discipline
1	Adding 7 + 6	Add within 20	Khan Academy	Basic and Health Sciences
2	Adding 8 + 7	Add within 20	Khan Academy	Basic and Health Sciences
3	Adding within 20 using place value blocks	Add within 20	Khan Academy	Basic and Health Sciences
4	Adding within 20 using ten frames	Add within 20	Khan Academy	Basic and Health Sciences

Sialkot Chamber of Commerce & Industry P.O. Box 1870, Shahrah-e-Aiwan-e-Sanat-o-Tijarat, Sialkot City 51310 – Pakistan