I was hoping to have taught him basic math skills by now. But unfortunately I have not had any success with that. He doesn't understand subtraction yet, and his addition still consists mostly of counting.
I didn't want to push him to hard, because it is more important for me to instill in him a love of learning rather than teach him specifically how to read, or his multiplication tables. As a result we haven't progressed as quickly as I had hoped, but I couldn't be more proud of him.
The trick I use to get him to read is "no video games until reading is done". There are plenty of days where he opts to not read and not play video games. And there are plenty of days where he reminds me he can't play until he reads.