Jeni Wong
Instrucciones para el estudiante
Use your knowledge of related facts. if you know 3 x4= 12 so 4 x 3 =12 / 12 ÷ 4 =3 / 12 ÷ 3 =4 https://www.youtube.com/watch?v=RPNm23iu4R4 if you know 3 x 4= 12 so 3 x40=120 or 30 x 4= 120