Now for some arithmetic...
This:


Minus this:







Equals this:

Yessiree, Grantman had his first haircut a week and a half and ago! His hair was getting in his eyes and covering his ears, so we got out the clippers and finally gave him a little boy haircut. I was a little nervous because I thought all his hair was pretty darn cute, but it is even cuter now! His hair even looks a little lighter now.
Leah had her first haircut just after Grant's, too:

Both haircuts together:

One more:
This:

Plus two years...
Equals this:

And some cute tummy time pictures. I don't know how to include them in the "math" topic, but maybe you can measure the increasing angles between Grant and the floor?