Cómo hacer una división de 2 cifras en el divisor, la mejor estrategia empleando el cálculo mental.

How to do a 2-digit division in the divisor, the best strategy. Nine-step procedure to perform a division using mental calculations when we have two figures in the divisor. Mastering the multiplication tables is important, as well as knowing how to mentally perform simple subtractions. Correction in narration 1: 09 should be from left to right. I leave the link for a simpler strategy    • Divisiones cuando tienen dos números en el...