This week we have been learning about cross product and how to do it. If you would want to sovle 21x31= i can teach you with my DLO, we were learning how to do it and at first i didn't get it but now it is really easy, you can use your basic facts to learn how to do this, it is easy beacuse you can use your basic facts and if you know easy basic facts it will be easy to use this. Here is an example
I hope it makes it easier
