Add: 11 + 9

What is 11 + 9?
What is 11 plus 9?
Addition 12 13 14 15 16
10 12+10 = 22 13+10 = 23 14+10 = 24 15+10 = 25 16+10 = 26
11 12+11 = 23 13+11 = 24 14+11 = 25 15+11 = 26 16+11 = 27
12 12+12 = 24 13+12 = 25 14+12 = 26 15+12 = 27 16+12 = 28
13 12+13 = 25 13+13 = 26 14+13 = 27 15+13 = 28 16+13 = 29
14 12+14 = 26 13+14 = 27 14+14 = 28 15+14 = 29 16+14 = 30
Addition 11.1 11.2 11.3 11.4 11.5 11.6
9.1 11.1+9.1 = 20.2 11.2+9.1 = 20.3 11.3+9.1 = 20.4 11.4+9.1 = 20.5 11.5+9.1 = 20.6 11.6+9.1 = 20.7
9.2 11.1+9.2 = 20.3 11.2+9.2 = 20.4 11.3+9.2 = 20.5 11.4+9.2 = 20.6 11.5+9.2 = 20.7 11.6+9.2 = 20.8
9.3 11.1+9.3 = 20.4 11.2+9.3 = 20.5 11.3+9.3 = 20.6 11.4+9.3 = 20.7 11.5+9.3 = 20.8 11.6+9.3 = 20.9
9.4 11.1+9.4 = 20.5 11.2+9.4 = 20.6 11.3+9.4 = 20.7 11.4+9.4 = 20.8 11.5+9.4 = 20.9 11.6+9.4 = 21
9.5 11.1+9.5 = 20.6 11.2+9.5 = 20.7 11.3+9.5 = 20.8 11.4+9.5 = 20.9 11.5+9.5 = 21 11.6+9.5 = 21.1
9.6 11.1+9.6 = 20.7 11.2+9.6 = 20.8 11.3+9.6 = 20.9 11.4+9.6 = 21 11.5+9.6 = 21.1 11.6+9.6 = 21.2