2-Digit Addtion without Regrouping (Videos)
https://www.youtube.com/watch?v=K5rmfHlHy20
https://www.youtube.com/watch?v=EV38zfiY6Vs
https://www.youtube.com/watch?v=M32I2eoHsRI
[U:2019-12-04 17:06; V:1813/2019-12-12 21:24]
2-Digit Addtion without Regrouping (Videos)
https://www.youtube.com/watch?v=K5rmfHlHy20
https://www.youtube.com/watch?v=EV38zfiY6Vs
https://www.youtube.com/watch?v=M32I2eoHsRI