Teachers, save “Suav Cov Npib QDNP” to assign it to your class.

Kuv paub suav cov npib QDNP. 1. Mloog. 2. Nias sau cov npib. 3. Nias thiab suav. 4. Nias Mus hauv ST Math li 20 fee hnub no. Thaij duab tso rau nplooj 2.