Uncharted Territory

So Middle Child was helping me make the bed yesterday morning. Oldest Child, feeling the need to put little sister in her place, was taunting her with math problems. The following is recreation is how it all went down:

H: You don't know what 1+1 equals.

E: I do too.

H: You don't know that it equals 2. I learned that in first grade and you don't even know that yet. Ha!

E: Slams the door in Oldest Child's face.

Then commences the putting on of pillows on my bed.

E: Only in Hannah-Hannah-La-La Land that equals 2!

Rolls eyes.