monta
.
2 + 2 = 4
Here's some more:
1 + 1 = 2
3 + 3 = 6
4 + 4 = 8
I can also do some that are not doubles:
3 + 2 = 5
1 + 6 = 7
4 + 5 = 9
And I can even do a couple two-digit ones!
12 + 14 = 26
28 + 54 = 82
33 + 27 = 60
I am so jealous, I am super bad at math, good ob wimnc, I see your college education is progressing nicely.