Number fingers

For the past few weeks now Christian has been asking to do 'number fingers.' This must have been something Rich taught him because it certainly wasn't me. Mostly he asks when we are in the car. What is number fingers, you ask? Good ole fashion adding and subtracting. Just as long as I keep the numbers and answers between 0-10, he gets them right about 99% of the time.

CK: Oh, mom, can we do number fingers?

me: OK. Got your fingers ready? What's 9 minus 3?

CK: Oh, ok, I think that's probably 6.

me: That's right. Great job.

CK: Can we do another one?

This will go on for quite some time. Until...

CK: OK, that's it for now. We'll do more later, ok?

Now, I don't know if it's age appropriate for him to be adding and subtracting at 3, but I'm just going to go with it. He seems to enjoy it, and it's just so cute when he asks if we can do 'number fingers,' like it's some sort of special treat.