Today we began division. I always suck my kids in by telling them I'm going to teach them how to divide without division. They never believe me, but it doesn't take long for them to figure out where I'm going. We use multiplication to divide! After all, multiplication is way more fun than division, right? ;) P2
Here's a set of 3 posters that give examples of multi-digit multiplication strategies, including the traditional algorithm, partial products, and lattice.