The way we teach math now a days is very different from when I was young. We have just recently started a unit on multiplying two-digit and three-digit numbers by a single factor. Throughout the unit I will be teaching three different algorithms or ways of solving the problems.
The first one is the partial products algorithm. This is a great way for kids to understand what multiplication actually is before learning more traditional algorithms that just have kids solve the problem and go through the motions. If you are unfamiliar with this method or the students need help with their homework this week, you can use this too.