Addition and subtraction within 20 (K-A)
| S# | Lecture | Course | Institute | Instructor | Discipline |
|---|---|---|---|---|---|
| 1 |
Adding 8 + 7 (K-A)
|
Addition and subtraction within 20 (K-A) | Khan Academy | Basic and Health Sciences | |
| 2 |
Subtracting 14 – 6 (K-A)
|
Addition and subtraction within 20 (K-A) | Khan Academy | Basic and Health Sciences |