Top Ten Simplest Addition Problems

The Top Ten
1 1+1=2
2 2+2=4
3 3+3=6
4 0+0=0

The easiest addition problem ever.

5 5+2+7
6 9+1=10
7 4+4=8
8 8+1=9
9 5+1=6
10 6+4=10
The Contenders
11 7+7=14
12 9+10=19
13 1+2=3
14 0+1=1
BAdd New Item